America:
Mt. Rushmore (National Monument)
West Point (Military Academy)
Wall Street (Stock Exchange)
Yellowstone (National Park)
Gateway Arch (Triumphal Arch)
White House (Parliament)
Arabia:
Austria: House of Habsburg (Parliament) - Stronger Vassals, 20% Chance to Build a vassals UU/UB
Opera House (National Theatre) - one of
Refar's theatres can be used for that
Aztec: Templo Mayo (National Theatre) - Enables Melee & Gunpowder Units to "enslave" a defeated unit.
Babylon:
Code of Hammurabi (Winter Palace) - No Courthouse Requirement, need 1/4 less cities to build
Ishtar Gate (National Monument)
Byzantine: Theodosian Walls (Triumphal Arch) - +50% Defence
Canada:
Carthage: War Harbor (Naval Expansion)
Celts:
China:
Forbidden Palace (Winter Palace)
School of Confucius (National Archives)
Egypt: Temple of Karnak (National Theatre) - +50%

yield, 1 Free Priest specialist
Library of Alexandria (National Archives)
England: Scotland Yard (Secret Police HQ) - -25% war weariness
Shakespeare's/Globe Theatre (National Theatre)
Oxford University (National University)
Big Ben (National Monument/Parliament)
Ethiopia:
Church of St. George (Religious Mission) - 2 Free Trade Routes (because the building is a pilgrimage of sorts.
France: The Louvre (National Gallery) - +100% Culture (+200% Total)
Arc de Triomphe (Triumphal Arch)
Franks:
Germany:
Neuswanstein Castle (Winter Palace)
Brandenburg Gate (Triumphal Arch)
Reichstag (Parliament)
Semperoper (National Theatre)
Greece: The Iliad (Heroic Epic) +10%

in all cities:
Hungary:
Orszaghaz/Hungarian Parliament (Parliament) - -50% Maintenance
MTA/Magyar Tudomanyos Akademia (National Archives)
Inca:
India:
Akshardham (National Gallery) - +2000

onBuildingBuild, 1 Free Artist Specialist
Nalanda University (National Archives)
Iroquios:
Israel: Shin Bet (Secret Police HQ)
Ezekiel Kifl (Royal Tomb)
Italy:
Japan:
Himeji Castle (Winter Palace) - +100%

from pillaging
Khmer:
Pha That Luang (National Monument) - +50%

, +2

with State Religion
Korea:
Cheomseongdae (National University) - 2 Free Scientist Specialist
Mali:
Great Mosque of Djenne (Religious Mission) - +2

to Desert Tiles
Maya:
Temple of Ah Cacao (National Monument) - 1 Free Tech onBuildingBuilt
Mexico:
Mongolia: Epic of Jangar (National Epic) +100% GGP, +100% Domestic GGP
Netherlands: East India Trading Co. (Stock Exchange) - Founds "East India Co" corporation
Ottoman: Grand Baazar (Stock Exchange) - +10%

from Gold, Silver, Gems, Ivory, Fur, Spices, Sugar, Silk, Dye, Incense, Whale, Wine
Topkapi Palace (Winter Palace) - Stronger Vassals, 20% Chance to Build a vassals UU/UB
Persia: Gondoshapur (National University) - Free Medic I Promotion, +25% Healing
Poland:
Saxon Palace (Winter Palace/Secret Police HQ) - +50% Espionage Points, +25% Espionage Defence
Polynesia:
Moai Statues (Naval Expansion)
Portugal:
Torre de Belem (Naval Expansion) - +25% Defence, Free Navigation I Promotion
Palacio de Pena (Parliament)
Rome: Senate (Parliament) Can Be Built Much Earlier
Russia:
KGB (Secret Police HQ) - Espionage Units get Free Sentry I promotion
Hermitage (National Gallery)
Bolsoi Theatre (National Theatre)
Scandinavia: The Sagas (Heroic Epic) - +3 EXP to Naval Units
Sioux: Badlands (National Park) - +2

to all cities, (currently no art)
Spain:
Sumeria: Epic of Gilgamesh (National Epic) - +1 Happiness to all cities
Vietnam:
Zulu: Isandlwana Memorial (Triumphal Arch) - a free "Last Stand" Promotion, when the unit is in the city (when they leave, the promotion is removed)
Serengeti (National Park)
Great Zimbabwe (Winter Palace)
Atlantean:
Atlantean Parliament (Parliament)
Belgium:
Bourla Theatre (National Theatre)
Brazil: La Liga de Futbol (National Theatre) - +2

from each Colosseum
Czech:
Prague Castle (Winter Palace)
Huns:
Minoa:
Knossos Labyrinth (National Epic)
Moors:
Alhambra (Winter Palace)
Nubia:
Phoenicia:
Slovakia:
Bratislava Castle (Winter Palace)
Timurid:
Teutonic Order:
Venice:
Venetian Arsenal (Naval Expansion)
Piazza San Marco (Parliament)