| Ridership | Continent | Answer | % Correct |
|---|---|---|---|
| 3.621 B | Asia | Beijing Subway | 98%
|
| 1.216 B | Europe | London Underground | 98%
|
| 2.040 B | North America | New York City Subway | 98%
|
| 3.461 B | Asia | Tokyo Metro + Toei Subway | 98%
|
| 1.476 B | Europe | Paris Metro | 97%
|
| 3.774 B | Asia | Shanghai Metro | 97%
|
| 2.289 B | Europe | Moscow Metro | 96%
|
| 554 M | Europe | Berlin U-Bahn | 91%
|
| 2.403 B | Asia | Seoul Metropolitan Subway | 91%
|
| 715 M | Europe | Madrid Metro | 90%
|
| 935 M | Asia | Osaka Metro | 90%
|
| 2.032 B | Asia | Delhi Metro | 89%
|
| 1.770 B | Asia | Hong Kong MTR | 89%
|
| 1.172 B | North America | Mexico City Metro | 88%
|
| 3.255 B | Asia | Guangzhou Metro | 87%
|
| 1.256 B | South America | São Paulo Metro | 83%
|
| 689 M | Europe | Istanbul Metro | 82%
|
| 1.467 B | Asia | Wuhan Metro | 81%
|
| 1.460 B | Africa | Cairo Metro | 77%
|
| 640 M | South America | Santiago Metro | 77%
|
| 1.240 B | Asia | Singapore MRT | 77%
|
| 3.102 B | Asia | Shenzhen Metro | 76%
|
| 686 M | Europe | Saint Petersburg Metro | 75%
|
| 1.406 B | Asia | Xi’an Metro | 74%
|
| 767 M | Asia | Taipei Metro | 73%
|
| 2.209 B | Asia | Chengdu Metro | 71%
|
| 1.417 B | Asia | Chongqing Rail Transit | 71%
|
| 674 M | Asia | Tianjin Metro | 61%
|
| 1.094 B | Asia | Nanjing Metro | 59%
|
| 820 M | Asia | Tehran Metro | 59%
|
| 1.470 B | Asia | Hangzhou Metro | 50%
|
| 531 M | Asia | Qingdao Metro | 44%
|
| 1.032 B | Asia | Changsha Metro | 39%
|
| 658 M | Asia | Shenyang Metro | 37%
|
| 697 M | Asia | Zhengzhou Metro | 36%
|
| 524 M | Asia | Hefei Metro | 26%
|
| 700 M | Asia | Suzhou Rail Transit | 26%
|