| 3,057 | 33 Biggest Non-Capital Cities in Africa | - | - |
| 241 | 33 Biggest Non-Coastal Cities in Africa | - | - |
| 2,488 | 44 Biggest Cities in the Middle East | - | - |
| 743 | All Cities in Africa with Population of 1 Million | - | - |
| 777 | All Cities in South America with Population of 1 Million | - | - |
| 890 | Biggest African Cities by Category | - | - |
| 749 | Biggest African Cities by Letter | - | - |
| 893 | Biggest Asian Cities A-Z | - | - |
| 483 | Biggest Black Sea Cities Quiz | - | - |
| 1,199 | Biggest "Burg" Cities in Germany | - | - |
| 590 | Biggest Cities by Ending | - | - |
| 183 | Biggest Cities in Afghanistan | - | - |
| 242 | Biggest Cities in Alberta | - | - |
| 104 | Biggest Cities in Cambodia Quiz | - | - |
| 291 | Biggest Cities in D.R. Congo | - | - |
| 964 | Biggest Cities in each Asian Country - Extreme | - | - |
| 284 | Biggest Cities in each Chinese Province - Extreme | - | - |
| 427 | Biggest Cities in each Spanish Region - Extreme | - | - |
| 558 | Biggest Cities in each Swedish County - Extreme | - | - |
| 228 | Biggest Cities in Egypt Quiz | - | - |
| 1,576 | Biggest Cities in France - Extreme | - | - |
| 367 | Biggest Cities in Greece | - | - |
| 236 | Biggest Cities in Indonesia Quiz | - | - |
| 230 | Biggest Cities in Iran Quiz | - | - |
| 270 | Biggest Cities in Iraq | - | - |
| 484 | Biggest Cities in Israel and Palestine | - | - |
| 273 | Biggest Cities in Kenya | - | - |
| 670 | Biggest Cities in Landlocked Countries | - | - |
| 99 | Biggest Cities in Manitoba | - | - |
| 116 | Biggest Cities in Myanmar | - | - |
| 214 | Biggest Cities in Norway Quiz | - | - |
| 352 | Biggest Cities in Pakistan Quiz | - | - |
| 506 | Biggest Cities in Québec | - | - |
| 183 | Biggest Cities in South Africa Quiz | - | - |
| 159 | Biggest Cities in South Korea Quiz | - | - |
| 402 | Biggest Cities in Southeast Asia | - | - |
| 471 | Biggest Cities in "Stan" Countries Quiz | - | - |
| 181 | Biggest Cities in Taiwan | - | - |
| 111 | Biggest Cities in Tanzania | - | - |
| 2,185 | Biggest Cities in the Arab World | - | - |
| 23,618 | Biggest Cities in the Confederate States in 1860 | 0 | - |
| 176 | Biggest Cities in the Philippines Quiz | - | - |
| 663 | Biggest Cities in the United States with Exceptions | - | - |
| 233 | Biggest Cities in Turkey - Extreme | - | - |
| 124 | Biggest Cities in Uzbekistan Quiz | - | - |
| 388 | Biggest Cities of FIFA World Cup | - | - |
| 324 | Biggest Cities On Danube | - | - |
| 290 | Biggest Cities On Rhine | - | - |
| 324 | Biggest Cities once in the Dutch Empire | - | - |
| 487 | Biggest Cities once in the French Empire | - | - |
| 746 | Biggest Cities once in the Japanese Empire | - | - |
| 276 | Biggest Cities once in the Mongol Empire | - | - |
| 583 | Biggest Cities Whose Name End with "City" | - | - |
| 276 | Biggest City by Lake | - | - |
| 365 | Biggest City In Each German State | - | - |
| 251 | Biggest Coastal Cities of China | - | - |
| 597 | Biggest Countries by Water Area | - | - |
| 666 | Biggest Four-Letter City by Country | - | - |
| 324 | Biggest Inland Cities in The World Quiz | - | - |
| 324 | Biggest Inland City by Country | - | - |
| 291 | Biggest "Pur" Cities in India | - | - |
| 567 | Biggest Russian Cities A-Z | - | - |
| 229 | Biggest South Asian Cities By Letter | - | - |
| 179 | Biggest South China Sea Cities Quiz | - | - |
| 1,281 | Biggest U.S. Cities that Contain U.S. State Names | - | - |
| 824 | Biggest "Ville" Cities - United States | - | - |
| 2,182 | Biggest World Cities That End in A | - | - |
| 41,365 | Five Biggest Cities by Country - Extreme | 0 | - |
| 1,388 | Five Biggest Cities by Region Quiz #1 | - | - |
| 1,660 | Five Biggest Cities by Region Quiz #2 | - | - |
| 687 | Five Biggest Cities by Region Quiz #3 | - | - |
| 2,017 | Largest World Cities With Six Letters | - | - |
| 421 | Second Biggest African Cities Quiz | - | - |
| 455 | Second Biggest Asian Cities Quiz | - | - |
| 559 | Three Biggest Cities by African Country | - | - |
| 1,178 | Three Biggest Cities by Body of Water | - | - |
| 367 | Top 10 Cities with the Most Japanese Nationals | - | - |
| 489 | Top 10 U.S. Cities with the Most Chinese | - | - |
