| Greatest Size (Square Miles) | Answer | % Correct |
|---|---|---|
| 13,710,000 | British Empire | 96%
|
| 5,290,000 | Spanish Empire | 87%
|
| 1,930,000 | Roman Empire | 82%
|
| 8,800,000 | Russian Empire | 82%
|
| 9,270,000 | Mongol Empire | 80%
|
| 2,120,000 | Portuguese Empire | 78%
|
| 2,010,000 | Ottoman Empire | 76%
|
| 2,120,000 | Achaemenid Empire | 56%
|
| 4,440,000 | Second French Empire | 56%
|
| 2,010,000 | Macedonian Empire | 42%
|
| 2,860,000 | Empire of Japan | 40%
|
| 4,290,000 | Umayyad Caliphate | 31%
|
| 3,220,000 | Empire of Brazil | 29%
|
| 2,510,000 | Ming Dynasty | 29%
|
| 4,700,000 | Qing Dynasty | 24%
|
| 4,290,000 | Abbasid Caliphate | 20%
|
| 2,320,000 | Golden Horde | 18%
|
| 2,470,000 | Rashidun Caliphate | 18%
|
| 4,250,000 | Yuan Dynasty | 18%
|
| 2,080,000 | Tang Dynasty | 13%
|
| 2,740,000 | Iberian Union | 9%
|
| 2,320,000 | Western Han Dynasty | 9%
|
| 2,320,000 | Gokturk Khanate | 7%
|
| 3,470,000 | Xiongnu Empire | 7%
|
| 2,510,000 | Eastern Han Dynasty | 4%
|