| Population | Answer | % Correct |
|---|---|---|
| 14.8 mil. | London | 100%
|
| 17.3 mil. | Moscow | 100%
|
| 12.1 mil. | Paris | 99%
|
| 6.6 mil. | Madrid | 98%
|
| 4.8 mil. | Barcelona | 97%
|
| 8.2 mil. | Milan | 97%
|
| 4.7 mil. | Berlin | 96%
|
| 16.0 mil. | Istanbul | 96%
|
| 4.4 mil. | Rome | 96%
|
| 3.6 mil. | Athens | 94%
|
| 3.1 mil. | Warsaw | 94%
|
| 8.2 mil. | Randstad | 92%
|
| 12.2 mil. | Rhine-Ruhr | 92%
|
| 5.7 mil. | St. Petersburg | 92%
|
| 6.0 mil. | Munich | 89%
|
| 5.1 mil. | Hamburg | 88%
|
| 4.6 mil. | Vienna-Bratislava | 88%
|
| 3.7 mil. | Greater Manchester | 87%
|
| 3.6 mil. | Kiev | 87%
|
| 4.3 mil. | Naples | 87%
|
| 4.1 mil. | West Midlands | 87%
|
| 3.3 mil. | Budapest | 85%
|
| 5.1 mil. | Flemish Diamond | 83%
|
| 5.8 mil. | Frankfurt Rhine-Main | 81%
|
| 3.2 mil. | Marseille | 77%
|
| 5.3 mil. | Stuttgart | 56%
|
| 5.3 mil. | Upper Silesia | 38%
|