| Biggest Cities in the World | 0 | - | 4.92 | 790,918 |
| Biggest City by Time Zone | 0 | - | 4.88 | 66,711 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,760 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,099 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,947 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 130,204 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,556 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,568 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,657 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,091 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,212 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,788 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 66,747 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,604 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,845 |
| Biggest Cities in the United States | 0 | - | 4.93 | 967,396 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,973 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,597 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,915 |
| Largest City by Island | 0 | - | 4.87 | 71,091 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,418 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,609 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,115 |
| Megacities on a World Map | 0 | - | 4.98 | 251,138 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,554 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,829 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,917 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,880 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,220 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,098 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,477 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,591 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,271 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,571 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,334 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,559 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,138 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,605 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,665 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,872 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,960 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,918 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,727 |
| Biggest City by Region | 0 | - | 4.50 | 36,006 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,916 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,027 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,231 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,936 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,265 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,708 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,109 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,339 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,505 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,376 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,777 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,851 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,572 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,572 |
| Biggest Cities in Europe | 0 | - | 4.70 | 542,367 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,545 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,440 |
| Biggest Cities in History | 0 | - | 4.52 | 89,163 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,135 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,671 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,382 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,204 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,875 |
| Biggest World Cities in 1850 | 0 | - | 4.62 | 68,208 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,451 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,547 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 116,005 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,648 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 121,949 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,247 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,034 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,870 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,980 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,675 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,471 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,241 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,507 |
| Countries with Megacities | 0 | - | 4.99 | 247,349 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,335 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,126 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,755 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,045 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,442 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,963 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 97,146 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,085 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,788 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,823 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,138 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,047 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,973 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,295 |
| Biggest Cities Near a Border | 0 | - | 4.21 | 31,763 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,850 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 161,832 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,624 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,661 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,821 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,489 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,162 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,938 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,120 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,972 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,536 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,714 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,357 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,347 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,494 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,632 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,729 |
| Flags to Largest Cities | 0 | - | 4.55 | 50,829 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,324 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,436 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 221,444 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,723 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,887 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,674 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,103 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,251 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.61 | 65,321 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,864 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,287 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,723 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,634 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,180 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,575 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,248 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,329 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,181 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,423 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,022 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,470 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,657 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,342 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,661 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,775 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,502 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,267 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,485 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,335 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,807 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,833 |
| Biggest Cities in Japan | 0 | - | 4.68 | 82,556 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,045 |
| Biggest Cities in France | 0 | - | 4.69 | 222,488 |
| Biggest Cities in Spain | 0 | - | 4.63 | 169,951 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,676 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,481 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,215 |
| Biggest Cities in China | 0 | - | 4.53 | 157,114 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,877 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,983 |
| Biggest Cities in India | 0 | - | 4.70 | 67,360 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,609 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,509 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.15 | 106,525 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,070 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,126 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,390 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,215 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.27 | 73,129 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,339 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,798 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,555 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,369 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,337 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,675 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,616 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,867 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,285 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,183 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,196 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 84,034 |
| Boundary Waters | 0 | - | 4.92 | 88,068 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,834 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,348 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,373 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,875 |
| Most Populous Islands | 0 | - | 4.79 | 122,023 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,211 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,411 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 231,075 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,093 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,930 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,039 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,631 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,853 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,467 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,875 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,185 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,972 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,455 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 38,020 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,941 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,930 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,734 |
