| River | City | % Correct |
|---|---|---|
| Nile | Cairo | 97%
|
| Thames | London | 93%
|
| Seine | Paris | 90%
|
| Yangtze | Shanghai | 72%
|
| Danube | Budapest / Vienna | 69%
|
| Missouri | St. Louis / Kansas City | 67%
|
| Tigris | Baghdad | 65%
|
| Tiber | Rome | 63%
|
| Congo | Kinshasa | 56%
|
| Río de la Plata | Buenos Aires | 54%
|
| St. Lawrence | Montreal | 52%
|
| Dnieper | Kyiv | 45%
|
| Ohio | Pittsburgh / Cincinatti | 42%
|
| Mississippi | Minneapolis | 36%
|
| Neva | St. Petersburg | 35%
|
| Vistula | Warsaw | 35%
|
| Rio Grande | Juarez / El Paso | 27%
|
| Columbia | Portland | 25%
|
| Loire | Nantes | 22%
|
| Han | Seoul / Wuhan | 22%
|
| Indus | Hyderabad | 12%
|