There are many ways to increase your Tourism. Here the whole thing:
Mechanism:
There are three types of Tourism: domestic Tourism, Tourism output and foreign Tourism.
- Domestic Tourism is the sum of Culture a civilization has accumulated for the whole game, including the completed Inspiration for Civic. Basically: the Civic progress. That value is shown in the Culture Victory tab.
- Tourism output is your current Tourism your civilization is generating every turn. That value is shown next to your Gold per turn, in the bar upthere.
- Foreign Tourism is, to make it simple, the sum of Tourism a civilization has applied to other civilizations. The game makes foreign Tourism harder to get depending on the map size: if there are two times more civilizations, the game makes it roughly twice as hard since your Tourism is applied to twice as many civilizations. Removing a civilization from the game by conquest is a bad idea: the game does not update and does not make foreign Tourism easier to get, while you lost a civilization where your Tourism could be applied. That value is shown in the Culture Victory tab.
The goal of the Culture Victory is to have attracted more foreign Tourism than the domestic Tourism from the highest enemy civilization. Why? I understand it as a way to improve the default of the Tourism system in Civilization V, going from a frustrating one if you didn’t meet all civilizations early enough but easy to understand, to a system hard to get that needed some thought from the game design department to make it work.
Getting Tourism:
Wonders:
They yield 2 Tourism each, and that Tourism increases by 1 for each era between where the wonder belongs to, and your current era. Your era is not the world era, but is defined by the era of the most advanced tech or civic you unlocked.
For example: you have the Great Lighthouse (classical era wonder), have unlocked Computers (atomic era tech) and the current world era is in the Renaissance. Your era is the atomic era, and the Great Lighthouse is a classical wonder from 5 eras behind (+0:classical, +1:medieval, +2:renaissance, +3:industrial, +4:modern, +5:atomic). Therefore, the Tourism of the Great Lighthouse is 7, so 2 (base) + 5 (era), even if you just built it last turn. It will go to 8 when you reach the information era, and 9 for the future era.
It might be interesting to build leftover wonders for their Tourism, even if the wonders itself isn’t good, since early wonders don’t require that much Production.
There are several ways to help wonder production like Pantheon (Monument to the Gods, +15% to ancient/classical wonders), Government (Autocracy, +10%), policies (Corvée, Gothic Architecture, and Skyscrapers, +15% each for wonders from set era), city-state (Brussels, +15%) or golden age dedication (Heartbeat of Steam, +10% for industrial or later wonders). It is not much, but can save a few turns. Some Great Engineers like Isidore of Miletus (Medieval), Imhotep (Medieval, Pack Babylon), Filippo Brunelleschi (Renaissance), Gustave Eiffel (Industrial), or Shah Jahan (Modern, Pack Babylon) can also help toward Wonder Production, and their Production is boosted by all Production boosts.
When playing China as Qin Shi Huang, the Builders are able to complete 15% of the Production of an ancient or classical wonder for the cost of 1 charge. That 15% is increased by all Production boost: if you have the Monument to the Gods (+15%), Autocracy (+10%), Corvée (+15%) and suzerain of Brussels (+15%), then your Builders will complete 23.25% of the wonder cost per charge, an economy of 2 Builder’s charges per wonder.
Tourism from wonders can also be increased with the golden age dedication Wish You Were Here, that gives +50% Tourism in cities with Governors. You also gain an additional +2 Tourism per coastal Wonder or adjacent to a coast with the Aquatic Center building in the Water Park.
Great Works:
They are linked to the Theater Square district, and there is 3 sorts:
- Great Work of Writing for 2 Culture and 2 Tourism. They are unlocked with the Great Writer that generates 2 of them, and the Amphitheatre has 2 slots for them.
- Great Work of Art for 3 Culture and 2 Tourism. They are unlocked with the Great Artist that generates 3 of them, and the Art Museum has 3 slots for them.
- Great Work of Music for 4 Culture and 4 Tourism. They are unlocked with the Great Musician that generates 2 of them, and the Broadcast Center has 1 slot for them.
The Museums are special in multiples ways:
- You are given a choice between Art Museum (for Arts) and Archaeological (for Artifacts). Artifacts are Great Works that are not created by Great People. Instead, you have to produce an Archaeologist that needs to roam the world and dig Artifacts for you from Antique Site, yielding 3 Culture and 3 Tourism each, but Archaeologists are unlocked later. Even if some are randomly created, I believe that Antique Sites are created when a player does events before its current era reaches the modern era, including finding a tribal village, razing a barbarian outpost or killing a unit.
- Museums can be themed. If a Museum has 3 Arts from the same type (landscape, portrait, religious or sculpture) and from different Great Artists, then they give +100% Culture and Tourism (18 Culture and 12 Tourism). If Artifacts are from the same era (ancient, classical, medieval, renaissance or industrial) and from different civilizations, then they also give +100% Culture and Tourism (18 Culture and 18 Tourism).
- They also have drawbacks. Arts can’t be moved for 10 turns after creation. Furthermore, if an Art is displayed in a Museum that already has Art from the same Artist, those additional Arts yields 1 Culture and Tourism instead of 3 and 2. Meanwhile, Artifacts can only be switched between full Archaeological Museums.
You can improve your Great Work Tourism several ways:
- Pingala (governor) can have the Curator title, that gives +100% Tourism from Great Works of Art, Music, and Writing in the city he is in.
- Unlocking the Printing technology gives +100% Tourism from Great Works of Writing.
- Slotting the Heritage Tourism policy card gives +100% Tourism from Great Works of Art and Artifacts.
- Slotting the Satellite Broadcast policy card gives +200% Tourism from Great Works of Music.
- Mary Leaky (scientist) gives +200% Tourism from Artifacts.
Stacking those bonuses are not multiplicative but additive. A Writing go up to +200% so 6 Tourism each with Pingala and Printing; an Art can go up to +300% so 8 Tourism each with Pingala, Heritage Tourism and a theme (a full Museum will be at 24 Tourism), an Artifact can go up to +400% so 15 Tourism each with Mary Leaky, Heritage Tourism and a theme (a full Museum will be at 45 Tourism), and a Music can go up to +300% so 16 Tourism each with Pingala and Satellite Broadcast.
To recruit Great Writers (GW), Artists (GA) and Musicians (GM), you need to generate points.
- Theatre Square gives 1 point for GW, GA and GM.
- Amphitheatre gives 1 point for GW.
- Museum (both) gives 1 point for GW and 2 points for GA.
- Broadcast Center gives 1 point for GA and 2 points for GM.
- A full Theatre Square yields 3 GW, 4 GA and 3 GM points each.
- Theatre Square unlocks the project Theater Square Performances. It converts 15% of your Production into GW, GA and GM.
- Pingala, a Governor (extension R&F), can unlock the Grants titles, giving +100% Great People generation in the city he is in.
Some Wonders can have additional slots or generate Great People points:
- The Oracle wonder gives +2 GW, GA and GM points in the city it is built in if it has a Theatre Square. It also reduces the recruitment cost of Great People with Faith by 25%.
- Sidenote: the Theocracy and Democracy government does not reduce the recruitment cost of Great People with Faith and Gold by 15%.
- Apadana (classical): Has 2 slots for any type of Great Works
- Great Library (classical): Has 2 slots of Writing, and +1 GW point.
- Bolshoi Theatre (industrial): Has 1 slot of Writing and 1 of Music, +2 GW and +2 GM points.
- Hermitage (industrial): Has 4 slots of Arts and +3 GA points. Arts do not suffer from the same Artist penalty in the Hermitage.
- Oxford University (industrial): Has 2 slots of Writing.
- Broadway (modern): Has 1 slot of Writing and 2 of Music. +3 GW and +3 GM points.
- Sydney Opera House (atomic): Has 3 slots of Music and +5 GM points.
In the Babylon Pack, the new Great People added are more powerful:
- GWs of Writing from Valmiki (Classical), Rumi (Medieval), Beatrix Potter (Modern), and Gabriela Mistral (Information) give 4 Culture and 4 Tourism instead of 2 and 2.
- GWs of Art from Kamāl ud-Dīn Behzād (Renaissance), Hasegawa Tōhaku (Industrial), and Wassily Kandinsky (Information) give 3 Culture and 4 Tourism instead of 3 and 2.
- The Great Musicians Dimitrie Cantemir (Industrial) and Scott Joplin (Modern) produce 3 GWs of Music instead of 2.
Relics:
They are linked to religion, and yield 4 Faith and 8 religious Tourism. They are created when an Apostle with the Martyr promotion dies in theological combat. It is also possible to get some in Tribal Village (~2%) or with the City-State Kandy. Religious tourism is unique to Relics and can suffer 2 penalties. If the target civilization does not share the same religion as your, then a Relic only yields half religious Tourism. Same thing applies when the target civilization has discovered the Enlightenment civic. If both are applied, your Relics yield only 2 religious Tourism instead of 8.
Some wonders or beliefs can help you for this strategy:
- Mont Saint-Michel (medieval wonder): All Apostles start with the Martyr promotion, and have 2 Relic slots.
- Saint Basil’s Cathedral (renaissance wonder): +100% religious Tourism in the city, and have 3 Relic slots.
- Cristo Redentor (modern wonder): religious Tourism cannot be diminished by other civilizations who have researched the Enlightenment civic.
- Reliquaries (follower belief): +200% religious Tourism and Faith from Relics.
- Cathedral (worship belief): Can hold a religious art. Relics are not religious Art, and religious Art generates standard Tourism, not religious Tourism. I wanted to clarify this.
If both Saint Basil’s Cathedral and Reliquaries are in effect, the Relic yields +300% religious Tourism, so 32 religious Tourism (not 48 religious Tourism, sadly).
Side note: the Holy City (the city where the religion is born) yields 8 religious Tourism.
Appeal usage:
In the end game, you can unlock the National Park (Conservation civic), the Seaside Resort (Radio technology) and the Ski Resort (Professional Sports civic), and generate Tourism equal to the tile’s Appeal.
The Appeal of a tile depends on its 6 adjacent tiles. It might raise when the tile gives Appeal, might lower when the tile reduces it, and some tiles neither raise nor reduce it. Here a full recap:
- +4 Appeal: Cliffs of Dover and Uluru (natural Wonders)
- +2 Appeal:
- Other: natural Wonders (except those at +4), and City Park (Governor Liang).
- Unique: Ice Hockey Rink (Canada), Pairidaeza (Persia), and Sphinx (Egypt).
- +1 Appeal:
- Nature: Coast, Lake, Mountain, Oasis, River and Woods
- Districts: Canal, Dam, Entertainment Complex, Holy Site, Theater Square, Preserve and Water Park.
- Other: world Wonders and Nazca Line (City-State)
- Unique: Château (France), Golf Course (Scotland), and Rock-Hewn Church (Ethiopia).
- -1 Appeal:
- Nature: Floodplain, Marsh and Rainforest.
- Districts: Aerodrome, Encampment, Industrial Zone and Spaceport.
- Improvement: Airstrip, Mine, Offshore Oil Rig, Oil Well and Quarry.
- Other: pillaged tile and barbarian outpost.
- A natural Wonder ignores adjacent tiles and has 5 in Appeal.
- A Mountain ignores adjacent tiles and has 4 in Appeal.
- At the Conservation civic, if a tile has an old-growth Woods then that tile gains 1 Appeal.
- (empire wide): +2 Appeal to all tiles in your empire if you built the Eiffel Tower, even to natural Wonders and Mountains.
- (empire wide): +1 Appeal to all tiles in your empire with Rainforest and Marsh if you built the Biosphère (but since they have -1 Appeal, the sum is 0).
- (city wide): +4 Appeal to all tiles in the city if you build the Golden Gate Bridge, even to natural Wonders and Mountains.
- (city wide): +1 Appeal to all tiles in the city when activating the Great Engineer Alvaar Alto (modern Era), even to natural Wonders and Mountains.
- (city wide): +2 Appeal to all tiles in the city when activating the Great Engineer Charles Correa (modern Era), even to natural Wonders and Mountains.
- (city wide): Unimproved features yield +1 Appeal to adjacent tiles if Reyna with Forestry Management is in the city (feature = Woods / Oasis and Floodplains / Marsh / Rainforest, making them at +2 and 0 respectively if not improved).
National Parks:
National Parks generate Tourism and Amenities. Tourism is equal to the sum of the Appeal tile inside it. It also gives 2 Amenities to the owning city, and 1 Amenity for the 4 closest cities, with no maximum range. National Parks are not a tile improvement, but rather unimproved 4 tiles grouped together. They are created by the Naturalist unit that can be bought only with Faith. A National Park needs to verify the following restrictions:
- Have 4 tiles in a diamond shape owned by the same city.
- Those tiles need to have no improvement at all. Roads or railroads are fine.
- Those tiles need to have at least Charming, which is 2 Appeal or more.
With the Golden Gate Bridge, all the tiles in the city have +4 Appeal and and National Parks enjoy +100% Tourism. Tourism can be further increased by 100% with the “Wish You Were Here” golden age dedication. Those both +100% Tourism are multiplicative: if you have both, it is a ×4 Tourism.
Side note: all Natural Parks with positive Appeal generate Tourism, even if it is outside of workable range. Be careful: the Appeal of tile that is 5 tiles away from any City-Center (and not only the City-Center of the owner of the tile) is set to 0 for some reason (except if it is a Mountain: therefore it is set at 4), even if you have the Eiffel Tower or the Golden Gate Bridge.
Seaside Resorts:
Seaside Resorts generate Tourism and Gold equal to the Appeal tile. It is created by a Builder on a coastal flat grassland, plain, desert or any coastal volcanic soil if the tile is Breathtaking (Appeal of 4 or more).
With the Cristo Redentor wonder, all the Seaside Resorts in your empire generate +100% Tourism. The Golden Gate Bridge also gives +100% Tourism but only in the city it is built, and +4 Appeal. Those both +100% Tourism are multiplicative: if you have both, it is a ×4 Tourism.
Be careful: the Tourism is only working if the Seaside Resort is within 3 tiles of a city-center. If it is further away, the Tourism will show how much Tourism it is generating, but the lifetime accumulation will stay at 0: it is not working.
Ski Resort:
Ski Resorts generally generate 4 Tourism and 1 Amenity, since a Mountain is set at 4 Appeal and ignores adjacent tiles for its Appeal, except if you have the Eiffel Tower (+2 Appeal), the Golden Gate Bridge in the city (+4 Appeal), or used the Great Engineers that raise Appeal. It is created by a Builder when standing next to a Mountain, and two Ski Resorts cannot be adjacent to each other. It is a very simple way to convert Mountains into free Amenities, since they are not exploitable otherwise, except Mountain Tunnel.
With the Golden Gate Bridge, Ski Resorts also enjoy +100%.
Be careful: the Tourism is only working if the Mountain is within 3 tiles of a city-center. If it is further away, the Tourism will show how much Tourism it is generating, but the lifetime accumulation will stay at 0: it is not working.
Flight & Improvement:
Flight tells us that all improvements that provide Culture generates Tourism. This is true but misleading and incomplete. The game has a list of tile improvements that are allowed to generate Tourism at Flight. In this list they are all tile improvements that generate Culture (except the Nubian pyramids…), but also those that could generate Culture thanks to the tile improvement itself under circonstances, like a Pantheon or playing a peculiar civilization. It means that a tile improvement that gains Culture from an outside source like a natural wonder, a world wonder or leader ability but is not part of the list is not going to yield Tourism at Flight. Something to mention: you don’t need to work the tile for Tourism, but the tile has to be in a workable range (within 3 tiles of the City-Center) to produce Tourism. If you put an improvement further away, it will appear to produce Tourism on the Tourism lens, but the lifetime accumulation will always be 0.
They are also some tile improvements that yield Tourism at Flight but use Faith or Food instead of Culture. Here the list:
- Culture to Tourism
- Base: City Park (Liang, governor), Mine, Pasture, Plantation, and Seastead.
- City-States: Alcázar (Granada), Batey (Caguana), and Moai (Rapa Nui),
- Unique: Château (France), Chemamull (Mapuche), Golf Course (Scotland), Great Wall (China), Ice Hockey Rink (Canada), Open-Air Museum (Sweden), Pairidaeza (Persia), Sphinx (Egypt), and Ziggurat (Sumeria)
- Special: Features with the Marae building (need explanation).
- No Tourism: Nubian Pyramid (Nubia), and Vampire Castle (Secret Societies game mode)
- Faith to Tourism: Colossal Heads (La Venta), and Rock-Hewn Church (Ethiopia)
- Food to Tourism: Kampung (Indonesia) (need explanation).
Pastures, Plantations and Mines are peculiar. They gain additional Culture with God of the Open Sky (Pantheon, +1 Culture to Pastures), Goddess of Festivals (Pantheon, +1 Culture to Plantations), or when playing as Gaul (+1 Culture to Mines). Therefore, those tile improvements generate Tourism at Flight because they can have Culture naturally: the game has set the “Culture to Tourism” on for those tile improvements. If the tile has Culture from the ressource, like Coffee & Silk for Plantations or from Amber & Jade for Mines, then that 1 Culture will not generate Tourism. A Gallic Mine over a Jade, yielding 2 Culture (1 from Jade and 1 from the Mine), will generate 1 Tourism at Flight.
But: the Pastures, Plantations and Mines are not locked to only work with the Pantheons or as Gaul: it can work with everyone. If you manage to have Culture on those tile improvements, then it will also yield Tourism at Flight. For example: the Chichen Itza gives +2 Culture to rainforest. A Banana plantation or a Diamonds mine over a rainforest will generate 2 Tourism each, with or without Pantheon or as or not as the Gallic. But other tile improvements on rainforest like Lumber Mills or Ivory camps will not generate at Flight with the Chichen Itza because the “Culture to Tourism'' for those tile improvements is set to off. It might be unfair to some extent, and I agree: this is just how the game works.
It also means it is exploitable in some extend::
- Have the improvement on natural Wonders that give Culture like the Eyjaflallajökull, Matterhorn, Mount Vesuvius (it gains Culture from eruption), Païtiti, Piopiotahi, Tsingy de Bemaraha or Uluru.
- Have the improvement (including: Pastures, Plantations and Mines) in the tundra when the city has the Saint Basil’s Cathedral wonder.
- Have Plantations and Mines in the rainforest when the city has the Chichen Itza wonder.
- Leading America as Theodore ‘Bull Moose’ Roosevelt, have the improvements with breathtaking Appeal next to Woods or world Wonders.
- Leading France as Catherine ‘Magnificent’ de Medici, have Plantations and Mines on luxury resources next to a Theatre Square or a Château.
- As the Maori, having the improvement (including: Pastures, Plantations or a Mines) on a passable feature in a city with the Marae.
Now, for the special cases:
- The Marae (unique Maori Amphitheatre) has the ability to give 1 Culture to features like Floodplain, Marsh, Oasis, Rainforest, Reef or Woods, including passable wonders like the Cliff of Dover. At Flight, each of those tiles will yield exactly 1 Tourism, even if it has more Culture than that. It is not all: the Culture can also be used with the tile improvement! If you have a Diamonds mine on a feature, you will end up having 2 Tourism for 1 Culture: 1 Tourism due to Marae, and 1 Tourism due to Mine.
- The Nubian Pyramid can have Culture if adjacent to a Theatre Square, but do not have the “Culture to Tourism '' at Flight. It might be an oversight.
- Colossal Heads and Rock-Hewn Church work the same way, instead it converts Faith into Tourism. As for the Culture one, you can enjoy the additional Faith input to increase the Tourism like those in Pantheon (Earth Goddess: +2 Faith from Breathtaking tiles, or Fire Goddess: +2 Faith on Volcanic Soil), improvement (Nazca Line (from Nazca city-state) that adds Faith to adjacent tiles (and Appeal)), or from natural Wonders (like: Delicate Arch, Mato Tipila, Mount Everest, Mount Roraima, or Uluru).
- Kampung is the same but with Food. As a Mine over a Jade, the base Food from Coast doesn’t count. But the Food from Lighthouse do count. The simple math is Food minus 1 is equal to the Tourism output of the Kampung.
Rock Band
Rock Bands roam the world and perform Concerts to generate Tourism against a target civilization. They are unlocked with the Cold War (atomic era civic) and can be bought with Faith. They start at level 1 with a Promotion to pick between 3 randomly chosen, or you can pick whatever you like with the Hallyu policy card from Cultural Hegemony (future era civic). At each performance, they generate Tourism, Album sales, and are rated between 1★ and 6★: they “disband” (killed) at 1 or 2★, and they are promoted at 5 or 6★. They gain a new Promotion to pick at level 2 and 3, and can go up to level 4.
A concert has roughly 45%, 35%, 25%, 16%, 10% and 5% to get 1 or 2★ performance and to disband at level 1, 2, 3, 4, 5 and 6, while having 10%, 17%, 26%, 37%, 50% and 62% to get 5 or 6★ and promote. It is possible to achieve virtually level 5 and 6 level while the unit is capped at level 4, thanks to the Promotions.
The Tourism you get from a concert depends on 3 things:
- Where you are performing: the base Tourism varies greatly between locations.
- The Performance rating
- The Album sales the Rock Band had before performing.
A Rock Band can only perform:
- World Wonder (base: 1000 Tourism)
- Entertainment Complex with an Arena (base: 250 Tourism, or 750 with Stadium)
- Theatre Square with an Amphitheater (base: 250 Tourism, or 750 with Broadcast Tower)
- Waterpark with a Ferris Wheel (base: 250 Tourism, or 750 with Aquatics Center)
- Campus with an University (base: 500 Tourism).
- Harbor with a Shipyard (base: 500 Tourism).
Promotions may allow to perform better at set location, unlock new place to perform, or gain unique ability like:
- Better at location:
- Album Cover Art: +1 level at world Wonders.
- Arena Rock: +2 levels at Entertainment Complexes
- Glam Rock: +2 levels at Theatre Squares.
- Reggae Rock: +2 levels at Water Parks.
- New locations:
- Music Festival: Can perform at National Parks and at land passable Natural Wonders, and performs at +1 level for 1000 base Tourism.
- Space Rock: Can perform at Spaceports and also Campuses without the University, and performs at +1 level for 500 base Tourism (or 1000 Tourism in Campus with University).
- Surf Band: Can perform at Seaside Resorts and also Harbors without the Shipyard, and performs at +1 level for 500 base Tourism (or 1000 Tourism in Harbor with Shipyard).
- Others:
- Goes to 11: 50% of Tourism generated is also applied to all civilizations within 10 tiles of performance.
- Indie: Performing causes the host city to lose 40 Loyalty.
- Pop Star: 25% of Tourism generates Gold.
- Religious rock: City converts to your religion.
- Roadies: +4 Movement
The performance rating gives -25%, +100%, -25%, +150%, +0% and +200% base Tourism at 1★, 2★, 3★, 4★, 5★ and 6★, and increases Album Sales by 0, 0, 50, 100, 150 and 200. The most important seems to be Album Sales. It works like a multiplier for the base Tourism: with 100 Album Sales equal to +100% to base Tourism. Performing 6★ on a world wonder while having 1000 Album sales means you generate 13000 Tourism, so: 1000 from the Wonder, 2000 from the 6★ performance, and 10000 from Album Sales.
Rock Bands are an amazing tool that allows them to target a single civilization. Since the goal is to beat domestic Tourism from the highest civilization, you can focus on the leading one. Each attracted foreign Tourism from the civilization reduces its domestic Tourism by 1. Be careful: Music Censorship is a policy card from the Space Race atomic civic that allows to ban Rock Bands from performing. If a location is occupied by a unit, you cannot perform there. You can also use this at your avantage: you can guard all your Wonders, Campuses, Entertainment Complexes, Harbors, Theatre Squares and Water Parks with a unit to prevent other Rock Bands from performing.
The optimal way of using Rock Bands units seems to not be known yet. I know some tend to send them directly to wonders with any promotions and hope for the best. I am talking only from my point of view, but I tend to start with a +2 levels promotion as my first one: it roughly doubles the odds of not disbanding and to gain a level. Then I pick one of the three following either Album Covert / Space Rock / Surf Band (+1 level and 1000 Tourism on Wonder / Campus with University / Harbor with Shipyard) for the maximum Tourism gain/survival, and one of the two following as finisher: either Goes to 11 / Pop Star promotion for insane Tourism or Gold generation as one promotion.
Biosphère:
That peculiar wonder allows renewable energy tile improvements or buildings to produce +200% more power and then generate Tourism from Power. The Offshore Wind Farms, Solar Farms and the Wind Farms end up generating 6 Power and Tourism each, the Geothermal Plants with 12 Power and Tourism, and the Hydroelectric Dams with 18 Power and Tourism. It also works for all sources that count as “renewable energy” by the game like: the Synthetic Technocracy gives 3 Power and end up to 9 Power and Tourism with the Biosphère, the suzerain bonus of Cardiff gives 2 Power per Harbor’s building and end up to 18 Power and Tourism per city with a full Harbor, or the Aerospace Contractors future policy cards that gives 3 Power to cities with a Spaceport so 9 Power and Tourism.
If you put the Governor Reyna with the title Renewable Subsidizer, you increase the Power generation by 2 with Offshore Winds Farms, Solar Farms, Wind Farms, Geothermal Plants and Hydroelectric Dams. This is working before the Biosphère effect: your Winds / Solar Farms go from 2 to 4 thanks to Reyna, then 4 to 12 Power and Tourism thanks to the Biosphère. This is huge: you end up to have a 12 Tourism tile improvement that you can put almost everywhere (except: flat Snow and Ocean tiles) for something that would need 12 Culture to work the same.
As all tile improvements that generate Tourism, it needs to be within 3 tiles to generate Tourism, while the Power itself doesn’t suffer the same restriction.
Note: a pillaged Winds / Solar Farms will still generate 2 Power with Reyna for some reason, so 6 Power and Tourism with the Biosphère. The Golden Gate Bridge does not double the Tourism.
Modifier: [WIP]
They exist multiples modifiers, depending
Wonders: the wish you were here take the truncated value, add 50%, then trunk it again. [need some research]
