| 3,095 | 33 Biggest Non-Capital Cities in Africa | - | - |
| 256 | 33 Biggest Non-Coastal Cities in Africa | - | - |
| 2,512 | 44 Biggest Cities in the Middle East | - | - |
| 749 | All Cities in Africa with Population of 1 Million | - | - |
| 788 | All Cities in South America with Population of 1 Million | - | - |
| 902 | Biggest African Cities by Category | - | - |
| 760 | Biggest African Cities by Letter | - | - |
| 909 | Biggest Asian Cities A-Z | - | - |
| 488 | Biggest Black Sea Cities Quiz | - | - |
| 1,217 | Biggest "Burg" Cities in Germany | - | - |
| 600 | Biggest Cities by Ending | - | - |
| 186 | Biggest Cities in Afghanistan | - | - |
| 248 | Biggest Cities in Alberta | - | - |
| 106 | Biggest Cities in Cambodia Quiz | - | - |
| 296 | Biggest Cities in D.R. Congo | - | - |
| 978 | Biggest Cities in each Asian Country - Extreme | - | - |
| 291 | Biggest Cities in each Chinese Province - Extreme | - | - |
| 431 | Biggest Cities in each Spanish Region - Extreme | - | - |
| 564 | Biggest Cities in each Swedish County - Extreme | - | - |
| 231 | Biggest Cities in Egypt Quiz | - | - |
| 1,585 | Biggest Cities in France - Extreme | - | - |
| 369 | Biggest Cities in Greece | - | - |
| 238 | Biggest Cities in Indonesia Quiz | - | - |
| 234 | Biggest Cities in Iran Quiz | - | - |
| 275 | Biggest Cities in Iraq | - | - |
| 489 | Biggest Cities in Israel and Palestine | - | - |
| 276 | Biggest Cities in Kenya | - | - |
| 680 | Biggest Cities in Landlocked Countries | - | - |
| 102 | Biggest Cities in Manitoba | - | - |
| 120 | Biggest Cities in Myanmar | - | - |
| 217 | Biggest Cities in Norway Quiz | - | - |
| 356 | Biggest Cities in Pakistan Quiz | - | - |
| 509 | Biggest Cities in Québec | - | - |
| 187 | Biggest Cities in South Africa Quiz | - | - |
| 163 | Biggest Cities in South Korea Quiz | - | - |
| 409 | Biggest Cities in Southeast Asia | - | - |
| 477 | Biggest Cities in "Stan" Countries Quiz | - | - |
| 185 | Biggest Cities in Taiwan | - | - |
| 112 | Biggest Cities in Tanzania | - | - |
| 2,197 | Biggest Cities in the Arab World | - | - |
| 23,687 | Biggest Cities in the Confederate States in 1860 | 0 | - |
| 178 | Biggest Cities in the Philippines Quiz | - | - |
| 667 | Biggest Cities in the United States with Exceptions | - | - |
| 236 | Biggest Cities in Turkey - Extreme | - | - |
| 127 | Biggest Cities in Uzbekistan Quiz | - | - |
| 390 | Biggest Cities of FIFA World Cup | - | - |
| 327 | Biggest Cities On Danube | - | - |
| 292 | Biggest Cities On Rhine | - | - |
| 326 | Biggest Cities once in the Dutch Empire | - | - |
| 491 | Biggest Cities once in the French Empire | - | - |
| 749 | Biggest Cities once in the Japanese Empire | - | - |
| 279 | Biggest Cities once in the Mongol Empire | - | - |
| 594 | Biggest Cities Whose Name End with "City" | - | - |
| 281 | Biggest City by Lake | - | - |
| 368 | Biggest City In Each German State | - | - |
| 253 | Biggest Coastal Cities of China | - | - |
| 604 | Biggest Countries by Water Area | - | - |
| 680 | Biggest Four-Letter City by Country | - | - |
| 329 | Biggest Inland Cities in The World Quiz | - | - |
| 332 | Biggest Inland City by Country | - | - |
| 297 | Biggest "Pur" Cities in India | - | - |
| 578 | Biggest Russian Cities A-Z | - | - |
| 234 | Biggest South Asian Cities By Letter | - | - |
| 181 | Biggest South China Sea Cities Quiz | - | - |
| 1,302 | Biggest U.S. Cities that Contain U.S. State Names | - | - |
| 830 | Biggest "Ville" Cities - United States | - | - |
| 2,207 | Biggest World Cities That End in A | - | - |
| 42,057 | Five Biggest Cities by Country - Extreme | 0 | - |
| 1,419 | Five Biggest Cities by Region Quiz #1 | - | - |
| 1,693 | Five Biggest Cities by Region Quiz #2 | - | - |
| 713 | Five Biggest Cities by Region Quiz #3 | - | - |
| 2,073 | Largest World Cities With Six Letters | - | - |
| 428 | Second Biggest African Cities Quiz | - | - |
| 466 | Second Biggest Asian Cities Quiz | - | - |
| 575 | Three Biggest Cities by African Country | - | - |
| 1,191 | Three Biggest Cities by Body of Water | - | - |
| 373 | Top 10 Cities with the Most Japanese Nationals | - | - |
| 494 | Top 10 U.S. Cities with the Most Chinese | - | - |
