| River | Largest City | % Correct |
|---|---|---|
| Nile | Cairo | 100%
|
| Rhine | Cologne | 100%
|
| Congo | Kinshasa | 100%
|
| Dnieper | Kyiv | 100%
|
| Amazon | Manaus | 100%
|
| Hudson | New York | 100%
|
| Seine | Paris | 100%
|
| Po | Turin | 100%
|
| Danube | Vienna | 100%
|
| Tigris | Baghdad | 80%
|
| Potomac | Washington D.C. | 80%
|
| Indus | Hyderabad | 75%
|
| Tiber | Rome | 75%
|
| Vistula | Warsaw | 75%
|
| Pearl | Guangzhou | 67%
|
| Mekong | Phnom Penh | 67%
|
| Senegal | Saint-Louis | 67%
|
| Neva | Saint Petersburg | 67%
|
| Thames | London | 60%
|
| Rio Grande | Ciudad Juárez | 50%
|
| Yenisey | Krasnoyarsk | 50%
|
| Mississippi | Memphis | 50%
|
| Niger | Bamako | 25%
|
| Yangtze | Chongqing | 25%
|
| Pasig | Manila | 17%
|
| Kasai | Bandundu | 0%
|
| Spree | Berlin | 0%
|
| Yellowstone | Billings | 0%
|
| Davao | Davao City | 0%
|
| Colorado | Grand Junction | 0%
|
| Elbe | Hamburg | 0%
|
| Yellow | Jinan | 0%
|
| Amur | Khabarovsk | 0%
|
| Klang | Kuala Lumpur | 0%
|
| Moskva | Moscow | 0%
|
| Godavari | Nashik | 0%
|
| Cumberland | Nashville | 0%
|
| Ob | Novosibirsk | 0%
|
| São Francisco | Petrolina | 0%
|
| Columbia | Portland | 0%
|
| Madeira | Porto Velho | 0%
|
| Taedong | Pyongyang | 0%
|
| Guadalupe | San Jose | 0%
|
| Serangoon | Singapore | 0%
|
| Arkansas | Tulsa | 0%
|
| Lena | Yakutsk | 0%
|