Illinois 28 Egypt 24 Mexico 15 Greece 12 North America 11 Central America 9 America 8 Middle East 8 Rome 8 Cahokia Mounds State Historic Park (Ill.) 7 Italy 7 United States 7 China 6 Great Britain 6 Peru 6 Crete (Greece) 5 Europe 5 Illinois River Valley 5 England 4 Illinois River Valley (Ill.) 4 Africa 3 American Bottom (Ill.) 3 Amérique du Nord 3 Cahokia (Ill.) 3 East (U.S.) 3 Iran 3 Iraq 3 Missouri 3 Palestine 3 Pompeii (Extinct city) 3 Rome (Italy) 3 Stonehenge (England) 3 Afghanistan 2 American Bottom 2 Andes Region 2 Athens (Greece) 2 Australia 2 Babylonia 2 Cahokia 2 Eurasia 2 France 2 Great Plains 2 Jerusalem 2 Lascaux Cave (France) 2 Latin America 2 Machu Picchu Site (Peru) 2 Napoleon Hollow Site (Ill.) 2 New York (State) 2 Ohio 2 Scotland 2 Solomon Islands 2 South America 2 Southwest, New 2 Washington (State) 2 West (U.S.) 2 Wiltshire 2 Wiltshire (England) 2 Yucatán (Mexico : State) 2 Aegean Sea Region 1 Alps 1 Amazon River Valley 1 Americas 1 Amérique 1 Amérique latine 1 Andes 1 Annapolis 1 Annapolis (Md.) 1 Ararat, Mount (Turkey) 1 Archie Site (Ill.) 1 Arkansas 1 Asia 1 Asia, Central 1 Assyria 1 Athen; Parthenon 1 Athens 1 Atlantic Coast 1 Atlantic Coast Region (Europe) 1 Atlantique, Côte de l' 1 Atlantique, Côte de l' (Europe) 1 Australia, Northern 1 Awash River Valley 1 Awash River Valley (Ethiopia) 1 Azië 1 BBB Motor Site (Ill.) 1 Bactria 1 Bahariya Oasis 1 Bahariya Oasis (Egypt) 1 Baranīs 1 Barānīs 1 Barānīs (Egypt) 1 Belize 1 Byzantine Empire 1 Cahokia Mounds State Historic Park 1 Cahokia Site (East Saint Louis, Ill.) 1 Campbell Hollow Site (Ill.) 1 Canada, Eastern 1 Cardiff 1 Cardiff (N.Y.) 1 Carthage (Extinct city) 1 Chauvet Cave (France) 1