| Size (km^2) | Answer | % Correct |
|---|---|---|
| 24,000,000 | Mongol Empire | 100%
|
| 35,500,000 | British Empire | 96%
|
| 22,800,000 | Russian Empire | 88%
|
| 13,700,000 | Spanish Empire | 86%
|
| 11,500,000 | French Empire | 85%
|
| 14,700,000 | Qing Dynasty | 67%
|
| 11,100,000 | Umayyad Caliphate | 50%
|
| 11,100,000 | Abbasid Caliphate | 37%
|
| 11,000,000 | Yuan Dynasty | 33%
|
| 9,000,000 | Xiongnu Empire | 17%
|