Takes | Quiz | Points | Best |
---|---|---|---|
2,550 | Largest Cities in the World in 1800 (with a map) | - | - |
960 | Largest Cities in the World in 1850 (with a map) | - | - |
1,271 | Largest Cities in the World in 1900 (with a map) | - | - |
2,247 | Largest Cities in the World in 1950 (with a map) | - | - |
912 | World's Largest Cities in 2050 | - | - |