| Takes | Quiz | Points | Best |
|---|---|---|---|
| 484 | Biggest Cities in the Great Basin on a Map | - | - |
| 2,867 | Danube River Basin Countries on a Map | - | - |
| 708 | Great Basin States on a Map | - | - |
| 1,644 | Mississippi Basin Rivers on a Map - Extreme | - | - |
| 1,515 | Mississippi-Missouri Basin States and Provinces | - | - |
| 50,425 | Nile River Basin Countries on a Map | 0 | - |
| 519 | States with the Most Land in the Mississippi Basin | - | - |