| Population | Country | Answer | % Correct |
|---|---|---|---|
| 499,000 | Denmark | Copenhagen | 90%
|
| 963,000 | Germany | Cologne | 85%
|
| 315,000 | United Kingdom | Cardiff | 63%
|
| 658,000 | Moldova | Chisinau | 60%
|
| 307,000 | Spain | Cordoba | 46%
|
| 207,000 | Belgium | Charleroi | 40%
|
| 332,000 | Romania | Cluj-Napoca | 40%
|
| 341,000 | Italy | Catania | 38%
|
| 1,084,000 | Russia | Chelyabinsk | 37%
|
| 306,000 | United Kingdom | Coventry | 35%
|
| 342,000 | Romania | Constanta | 29%
|
| 263,000 | Germany | Chemnitz | 19%
|
| 313,000 | Romania | Craiova | 13%
|
| 257,000 | Poland | Czestochowa | 10%
|
| 459,000 | Russia | Cheboksary | 8%
|
| 308,000 | Ukraine | Cherkassy | 6%
|
| 307,000 | Ukraine | Chernigov | 6%
|
| 323,000 | Russia | Cherepovets | 4%
|
| 260,000 | Ukraine | Chernovtsy | 4%
|