| River | Length | Population | City | % Correct |
|---|---|---|---|---|
| Nile | 6,650 | 19,372,000 | Cairo | 100%
|
| Yangtze | 6,300 | 22,120,000 | Shanghai | 95%
|
| Congo | 4,700 | 13,528,000 | Kinshasa | 84%
|
| Rio de la Plata | 4,880 | 16,157,000 | Buenos Aires | 83%
|
| Amazon | 6,575 | 2,235,000 | Manaus | 81%
|
| Mississippi | 6,275 | 1,078,000 | Memphis | 48%
|
| Ob | 5,410 | 1,646,000 | Novosibirsk | 45%
|
| Niger | 4,200 | 3,637,000 | Bamako | 44%
|
| Mekong | 4,350 | 2,177,000 | Phnom Penh | 44%
|
| Volga | 3,645 | 1,541,000 | Nizhny Novgorod | 34%
|
| Lena | 4,400 | 311,760 | Yakutsk | 25%
|
| Indus | 3,610 | 2,159,000 | Hyderabad | 24%
|
| Yenisei | 5,539 | 1,022,000 | Krasnoyarsk | 19%
|
| Amur | 4,444 | 605,000 | Khabarovsk | 15%
|
| Yellow | 5,464 | 6,765,000 | Zhengzhou | 13%
|
| Murray | 3,672 | 49,172 | Albury | 6%
|
| Mackenzie | 4,241 | 3,243 | Inuvik | 5%
|
| Brahmaputra | 3,848 | 1,175,000 | Guwahati | 4%
|
| Euphrates | 3,596 | 300,000 | Raqqa | 4%
|
| Madeira | 3,380 | 510,000 | Porto Velho | 3%
|