| Area | Length | River | % Correct |
|---|---|---|---|
| 2) South America | 4000 mi | Amazon | 100%
|
| 13) Kinshasa | 2920 mi | Congo | 100%
|
| 8) Central Europe | 1770 mi | Danube | 100%
|
| 25) India | 1569 mi | Ganges | 100%
|
| 5) New York City | 315 mi | Hudson | 100%
|
| 7) SE Asia | 3000 mi | Mekong | 100%
|
| 4) Minnesota-New Orleans | 2340 mi | Mississippi | 100%
|
| 3) Africa | 4400 mi | Nile | 100%
|
| 1) US-Mexico | 1900 mi | Rio Grande | 100%
|
| 16) Paris | 483 mi | Seine | 100%
|
| 9) London, UK | 215 mi | Thames | 100%
|
| 15) Also Mesopotamia | 1180 mi | Tigris | 100%
|
| 12) Longest in Europe | 2230 mi | Volga | 100%
|
| 6) China | 3915 mi | Yangtze | 100%
|
| 10) Grand Canyon | 1450 mi | Colorado | 88%
|
| 14) Ancient Mesopotamia | 1740 mi | Euphrates | 88%
|
| 18) Pakistan-India | 1980 mi | Indus | 88%
|
| 11) Major tributary of #4 | 2350 mi | Missouri | 88%
|
| 23) Western Europe | 760 mi | Rhine | 88%
|
| 17) China | 3395 mi | Yellow | 88%
|
| 24) Canada | 2635 mi | Mackenzie | 75%
|
| 19) Western Siberia | 3362 mi | Ob | 75%
|
| 22) Pittsburgh, PA | 981 mi | Ohio | 75%
|
| 20) Alps | 506 mi | Rhone | 63%
|
| 21) Brazil-Argentina | 820 mi | Iguazu | 50%
|