| Hint | Population | Answer | % Correct |
|---|---|---|---|
| 1900 | 6.4 million | London | 99%
|
| ---- | 1 million | London | 99%
|
| ---- | 39.8 million | Tokyo | 97%
|
| 2000 | 26.4 million | Tokyo | 97%
|
| ---- | 4.2 million | New York | 96%
|
| ---- | 3.3 million | Paris | 95%
|
| 100 | 1 million | Rome | 95%
|
| ---- | 31.1 million | Shanghai | 93%
|
| 1800 | 1.1 million | Beijing | 92%
|
| ---- | 650 thousand | Beijing | 92%
|
| 1600 | 1 million | Beijing | 92%
|
| 1500 | 670 thousand | Beijing | 92%
|
| ---- | 750 thousand | Guangzhou | 86%
|
| 2017 | 48.6 million | Guangzhou | 84%
|
| ---- | 700 thousand | Istanbul | 78%
|
| ---- | 700 thousand | Istanbul | 78%
|
| ---- | 400 thousand | Cairo | 75%
|
| ---- | 18.1 million | Mumbai | 72%
|
| ---- | 450 thousand | Baghdad | 50%
|
| ---- | 18.1 million | Mexico City | 50%
|
| ---- | 300 thousand | Constantinople | 34%
|
| 500 | 450 thousand | Constantinople | 34%
|
| 1000 | 450 thousand | Cordoba | 30%
|
| ---- | 500 thousand | Agra | 13%
|
| ---- | 300 thousand | Luoyang | 9%
|
| ---- | 400 thousand | Luoyang | 9%
|
| ---- | 400 thousand | Kaifeng | 7%
|
| 1700 | 1 million | Ayutthaya | 4%
|
| ---- | 500 thousand | Vijayanagar | 3%
|
| ---- | 300 thousand | Selucia | 1%
|