Here are my sugestions for buildings, I still have to think about some more, but for now I'll post my ideas. I don't know if we can do this without editing Python, but some buildings will give promos to units of a specific category, like a promo to all Melee or to all Ranged units. This will allow us to have buildings like Stables and Siegeweapons Workshop, and still be able to build the units without them - just weaker. Also, we'll have more defensive structures than the normal game (just because in Tolkien we see so many walls, towers, fortresses, etc), so I had to reduce the bonus they grant, and I'd like to reduce (or even remove) the cultural defense bonus to avoid it overriding or reducing the efectiveness of these structures. Also, many of those graphics should override those of earlier buildings (like fortified walls overriding normal walls, or fortresses overriding castles).
Palisade: +5% city defense, requires Wood Working, costs 40 hammers
Walls: +10% city defense, requires the Stone Working tech, costs 100 hammers, halved cost with stone, doesn't stack with Palisade
Castle: +15% city defense, requires the Siege Warfare tech, costs 150 hammers, halved cost with stone, requires Walls
Fortress: +25% city defense, requires the Fortresses tech, costs 250 hammers, requires stone, requires Castle
Stronghold: +35% city defense, -10% city maintenance cost, -1 War Weariness, requires the Engineering tech, costs 400 hammers, requires stone, requires Fortress, limit of 2 per civ
Fortified Wall: +20% city defense, requires the Improved Siege Warfare tech, costs 180 hammers, requires stone, requires Walls
Wooden Tower: +10% defense, costs 100 hammers, requires Palisade, requires the Fortification tech
Tower: +30% city defense, free promo to units built in the city, requires the Fortification tech, costs 300 hammers, requires stone, requires Walls, limit of 5 per civ
Barracks: +2 XP to units built in the city, costs 60 hammers
Training Field: free promo to Melee units built in the city, costs 85 hammers, requires Barracks, requires the Infantry Tatics tech
Archery Field: free promo to Ranged units built in the city, costs 85 hammers, requires Barracks, requires the Sharpshooting tech
Stables: free promo to Mounted units built in the city, costs 85 hammers, requires Barracks, requires the Cavalry Tatics tech
Siege Weapons Workshop: free promo to Siege units built in the city, costs 125 hammers, requires Barracks, requires the Improved Siege Warfare tech
Havens: +2 XP to units built in the city, costs 100 hammers, requires the Ship Building tech
Drydocks: free promo to Naval units built in the city, costs 130 hammers, requires Havens, requires the Naval Warfare tech
Market: +50% commerce in the city, +1 happiness from trade goods, 2 Merchants, costs 150 hammers, requires the Commerce tech
Grocer: +25% commerce, + 1 health from food resources, 1 Merchant, costs 115 hammers, requires the Trade tech
Town Hall: -50% maintenace costs in the city, costs 170 hammers, requires the The Court tech
Tavern: +1 happiness, +1 happiness from Wine, 1 Merchant, costs 115 hammers, requires the Monarchy tech
Inn: +1 trade route in the city, +1 happiness, +1 Health, costs 200 hammers, requires the Great Trade Routes tech
Well: +1 Health, costs 80 hammers
Houses of Cure +2 Health, free promo (Medic I?) to units built in the city, costs 300 hammers, requires the Healing tech, limit of 5
Granary: stores half of the food when the city grows, +1 health from food resources, costs 80 hammers, requires the Farming tech
Docks: +1 food in water tiles, costs 90 hammers, requires the Sailing tech
Harbor: +1 trade route, +25% commerce, +1 happiness from sea food resources, costs 150 hammers, requires the Navigation tech
Archives: +25% research, +1 culture, +1 happiness for each 20% of gold going to culture, 1 Loremaster, costs 110 hammers, requires the Tradition Keeping tech
Library: +25% research, +1 culture, +1 happiness, 1 Loremaster, costs 160 hammers, requires the Literature tech, requires Archives
Houses of Lore: +50% research, +2 culture, +1 happiness, 2 Loremasters, costs 250 hammers, requires the History tech, requires Library
Guild of Artists: +20% culture in the city, costs 115 hammers, requires the Poetry tech
Guild of Minstrels: +2 culture, +1 happiness, costs 115 hammers, requires the Music tech
Forge: +50% production in the city, -1 health, costs 65 hammers, requires the Bronze Working tech
Armory: +5% (?) unit production, free promo to ranged units (Extra Ammonition), costs 115 hammers, requires the Weaponry tech
Armorsmith: free promo to units built in the city, costs 100 hammers, requires the Chain Mail tech, requires Iron
Blacksmith: free promo to units built in the city, +25 production in the city, costs 125 hammers, requires the Smithing tech, requires Iron
Weaponsmith: free promo to units built in the city, costs 200 hammers, requires the Weapon Mastery tech, requires Iron, requires Blacksmith
Post Office: -50% war weariness, costs 100 hammers, requires the Trade Posts tech
Guard's House: -25% War Weariness, free promo, costs 110 hammers, requires the Vassalage tech
Jail: -25% war weariness, costs 50 hammers, requires the Diplomacy tech
Town Square: +1 happiness, costs 80 hammers (perhaps add a "Urbanization" tech?)
