| City | River | % Correct |
|---|---|---|
| Cairo | Nile | 99%
|
| London | Thames | 99%
|
| Vienna | Danube | 98%
|
| Paris | Seine | 93%
|
| New Orleans | Mississippi | 92%
|
| Kinshasa | Congo | 91%
|
| Rotterdam | Rhine | 89%
|
| Baghdad | Tigris | 89%
|
| Kolkata | Ganges | 86%
|
| Manaus | Amazon | Negro | 83%
|
| Nizhny Novgorod | Volga | 83%
|
| Shanghai | Yangtze | Huangpu | 82%
|
| Rome | Tiber | 80%
|
| Turin | Po | 79%
|
| Rostov-on-___ | Don | 78%
|
| Phnom Penh | Mekong | 78%
|
| El Paso | Rio Grande | 77%
|
| Kiev | Dnieper | 73%
|
| Bamako | Niger | 71%
|
| Geneva | Rhône | 71%
|
| Newcastle-upon-____ | Tyne | 71%
|
| Nantes | Loire | 70%
|
| Hamburg | Elbe | 68%
|
| Cincinnati | Ohio River | 68%
|
| Stoke-on-_____ | Trent | 66%
|
| Warsaw | Vistula | 58%
|
| Novosibirsk | Ob | 52%
|
| Whitehorse | Yukon | 52%
|
| Yakutsk | Lena | 47%
|
| Zaragoza | Ebro | 44%
|
| Amsterdam | Amstel | 42%
|
| Wrocław | Oder | 39%
|
| Berlin | Spree | Havel | 38%
|
| Porto | Douro | 36%
|
| Essen | Ruhr | 30%
|
| Florence | Arno | 29%
|
| Bordeaux | Garonne | 29%
|
| Innsbruck | Inn | 29%
|
| Prague | Vltava | 25%
|