| Takes | Quiz | Points | Best |
|---|---|---|---|
| 58 | Largest cities of the Baltic Sea drainage basin on a map | - | - |
| 34 | Largest cities of the Danube river basin on a map | - | - |
| 96 | Largest cities of the Rhine river basin on a map | - | - |
| 65 | Largest cities of the Saint-Lawrence river basin on a map | - | - |