| Biggest Cities in the World | 0 | - | 4.91 | 792,108 |
| Biggest City by Time Zone | 0 | - | 4.88 | 66,923 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,057 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,589 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,160 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 130,913 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,791 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,727 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,821 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,243 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,332 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,871 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 66,891 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,813 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,446 |
| Biggest Cities in the United States | 0 | - | 4.93 | 968,875 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,285 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,974 |
| Biggest Cities by Language | 0 | - | 4.96 | 243,183 |
| Largest City by Island | 0 | - | 4.87 | 71,202 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,496 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,742 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,617 |
| Megacities on a World Map | 0 | - | 4.98 | 251,562 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 574,243 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,919 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,065 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,127 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,389 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,218 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,771 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,644 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,730 |
| Megacities on an Empty Map | 0 | - | 4.96 | 110,943 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,429 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,604 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,194 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,824 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,830 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,070 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,047 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,940 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,780 |
| Biggest City by Region | 0 | - | 4.50 | 36,028 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,944 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,061 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,248 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,978 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,285 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,026 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,260 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,484 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,593 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,531 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,855 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,993 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,745 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,658 |
| Biggest Cities in Europe | 0 | - | 4.70 | 542,850 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,444 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,579 |
| Biggest Cities in History | 0 | - | 4.52 | 89,237 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,172 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,720 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,603 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,238 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,991 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,240 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,765 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,684 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 116,129 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,771 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,099 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,592 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,153 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,890 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,989 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,695 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,486 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,300 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,771 |
| Countries with Megacities | 0 | - | 4.99 | 247,915 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,657 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,280 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,041 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,228 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,722 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,995 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 97,374 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,156 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,437,259 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,184 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,169 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,096 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 49,095 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,324 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,795 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,862 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,003 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,870 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,739 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,940 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,608 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,254 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,105 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,399 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,105 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,595 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,885 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,467 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,402 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,523 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,677 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,850 |
| Flags to Largest Cities | 0 | - | 4.54 | 50,909 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,420 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,608 |
| Biggest World Cities A-Z | 0 | - | 4.62 | 221,866 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,827 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,909 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,695 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,127 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,314 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,342 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,883 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,397 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,755 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,662 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,206 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,617 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,562 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,504 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,241 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,583 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,141 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,568 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,755 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,381 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,688 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,819 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,546 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,306 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,560 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,351 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,847 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,915 |
| Biggest Cities in Japan | 0 | - | 4.68 | 82,640 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,090 |
| Biggest Cities in France | 0 | - | 4.69 | 222,724 |
| Biggest Cities in Spain | 0 | - | 4.63 | 170,119 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,717 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,536 |
| Biggest Cities in the UK | 0 | - | 4.47 | 104,313 |
| Biggest Cities in China | 0 | - | 4.53 | 157,320 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,991 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,011 |
| Biggest Cities in India | 0 | - | 4.70 | 67,404 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,836 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,595 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 106,613 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,142 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,184 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,439 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,256 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,172 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,403 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,848 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,699 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,478 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,402 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,760 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,669 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,923 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,373 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,304 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,336 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,098 |
| Boundary Waters | 0 | - | 4.92 | 88,119 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,883 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,452 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,530 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,967 |
| Most Populous Islands | 0 | - | 4.79 | 122,076 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,221 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,429 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,306 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,260 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,104 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,125 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,656 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,907 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,584 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,922 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,272 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,037 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,476 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 38,064 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,977 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,972 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,752 |
