| Year | Rank | Population | Answer | % Correct |
|---|---|---|---|---|
| 1900 | 1. | 6.4m | London | 100%
|
| 1910 | 1. | 7.1m | London | 100%
|
| 1920 | 1. | 7.5m | London | 100%
|
| 1930 | 1. | 8m | London | 100%
|
| 1940 | 1. | 8.6m | London | 100%
|
| 1950 | 1. | 8.3m | London | 100%
|
| 1960 | 1. | 8.1m | London | 100%
|
| 2. | 7.5m | London | 100%
| |
| 3. | 6.7m | London | 100%
| |
| 3. | 6.8m | London | 100%
| |
| 2. | 3.3m | Paris | 100%
| |
| 2. | 3.8m | Paris | 100%
| |
| 2. | 4.4m | Paris | 100%
| |
| 2. | 5.5m | Paris | 100%
| |
| 2. | 5.6m | Paris | 100%
| |
| 2. | 6.2m | Paris | 100%
| |
| 2. | 7.2m | Paris | 100%
| |
| 1970 | 1. | 8.1m | Paris | 100%
|
| 1980 | 1. | 8.6m | Paris | 100%
|
| 1990 | 1. | 9.2m | Paris | 100%
|
| 7. | 1.2m | Leningrad | 99%
| |
| 5. | 3m | Leningrad | 99%
| |
| 5. | 2.9m | Leningrad | 99%
| |
| 4. | 3.4m | Leningrad | 99%
| |
| 4. | 3.9m | Leningrad | 99%
| |
| 4. | 4.4m | Leningrad | 99%
| |
| 5. | 4.9m | Leningrad | 99%
| |
| 6. | 1.6m | Moscow | 99%
| |
| 4. | 2.6m | Moscow | 99%
| |
| 4. | 4.2m | Moscow | 99%
| |
| 3. | 5.3m | Moscow | 99%
| |
| 3. | 6.1m | Moscow | 99%
| |
| 3. | 7.1m | Moscow | 99%
| |
| 2. | 8.1m | Moscow | 99%
| |
| 2. | 8.9m | Moscow | 99%
| |
| 3. | 2.7m | Berlin | 98%
| |
| 3. | 3.3m | Berlin | 98%
| |
| 3. | 3.7m | Berlin | 98%
| |
| 3. | 4.1m | Berlin | 98%
| |
| 3. | 4.3m | Berlin | 98%
| |
| 4. | 3.3m | Berlin | 98%
| |
| 5. | 3.2m | Berlin | 98%
| |
| 7. | 3.2m | Berlin | 98%
| |
| 5. | 3.3m | Madrid | 98%
| |
| 6. | 4.1m | Madrid | 98%
| |
| 6. | 4.5 | Madrid | 98%
| |
| 5. | 1.4m | St. Petersburg | 98%
| |
| 4. | 2m | St. Petersburg | 98%
| |
| 5. | 2m | St. Petersburg | 98%
| |
| 7. | 2.4m | Rome | 96%
| |
| 4. | 1.7m | Vienna | 96%
| |
| 5. | 2m | Vienna | 96%
| |
| 4. | 2m | Vienna | 96%
| |
| 7. | 1.9m | Vienna | 96%
| |
| 5. | 4.5m | Istanbul | 93%
| |
| 4. | 6.6m | Istanbul | 93%
| |
| 6. | 1.4m | Manchester | 88%
| |
| 7. | 1.5m | Manchester | 88%
| |
| 5. | 1.6m | Manchester | 88%
| |
| 6. | 2m | Manchester | 88%
| |
| 6. | 2.4m | Manchester | 88%
| |
| 6. | 2.4m | Manchester | 88%
| |
| 6. | 2.4m | Barcelona | 86%
| |
| 6. | 3.3m | Barcelona | 86%
| |
| 7. | 3.8m | Barcelona | 86%
| |
| 7. | 4.1m | Barcelona | 86%
| |
| 7. | 1.2m | Birmingham | 83%
| |
| 6. | 1.6m | Birmingham | 83%
| |
| 7. | 2.2m | Birmingham | 83%
| |
| 7. | 2.2m | Birmingham | 83%
|