| City | River | % Correct |
|---|---|---|
| Cairo | Nile | 95%
|
| London | Thames | 93%
|
| Budapest | Danube | 90%
|
| Paris | Seine | 87%
|
| Düsseldorf | Rhine | 84%
|
| New Orleans | Mississippi | 82%
|
| New York City | Hudson | 79%
|
| Baghdad | Tigris | 74%
|
| Shanghai | Yangtze | 67%
|
| Kinshasa | Congo | 63%
|
| Rome | Tiber | 62%
|
| Washington D.C. | Potomac | 59%
|
| Phnom Penh | Mekong | 54%
|
| Cincinnati | Ohio | 54%
|
| Montreal | St. Lawrence | 51%
|
| Kyiv | Dnieper | 45%
|
| Buenos Aires | Plata | 45%
|
| Frankfurt | Main | 42%
|
| Hamburg | Elbe | 41%
|
| Varanasi | Ganges | 41%
|
| Warsaw | Vistula | 32%
|
| Cambridge, England | Cam | 30%
|
| Lisbon | Tagus | 23%
|
| Seoul | Han | 17%
|