| Biggest Cities in the World | 0 | - | 4.91 | 794,957 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,280 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,582 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 223,588 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,614 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 132,135 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,150 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,037 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 415,753 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,230 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,520 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,603 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,108 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,194 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,485 |
| Biggest Cities in the United States | 0 | - | 4.93 | 973,296 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,066 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 575,982 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,738 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,680 |
| Largest City by Island | 0 | - | 4.87 | 71,510 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,656 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,453 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,076 |
| Megacities on a World Map | 0 | - | 4.98 | 252,611 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,084 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,497 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,825 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,873 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 343,991 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,527 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,312 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,789 |
| Megacities on an Empty Map | 0 | - | 4.97 | 117,744 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,646 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 222,446 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,732 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,330 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,408 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,267 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,549 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,836 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,897 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,899 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,098 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,393 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,238 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,922 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,286 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,014 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,872 |
| Biggest City by Region | 0 | - | 4.50 | 36,086 |
| Most Populous 2nd Cities | 0 | - | 4.77 | 57,021 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,125 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,302 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,115 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,330 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,567 |
| Biggest Cities in Europe | 0 | - | 4.72 | 544,446 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,854 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,320 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,309 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,580 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,418 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,668 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 151,911 |
| Biggest Cities in History | 0 | - | 4.52 | 89,896 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,243 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,312 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,965 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,342 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,298 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,806 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,079 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 97,998 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,394 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,943 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,319 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,036 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,359 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,921 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,535 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,672 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 72,963 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,013 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,731 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,518 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,453 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,446 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,753 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,298 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,195 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 49,413 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,033 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,441,134 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,163 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,533 |
| Countries with Megacities | 0 | - | 4.99 | 249,497 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,382 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,695 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,716 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,661 |
| Biggest Cities in Latin America | 0 | - | 4.47 | 64,615 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,077 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,160 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,837 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,138 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,691 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,842 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,884 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,312 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,050 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,884 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,189 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,883 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,612 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,504 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,371 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,075 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,453 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,150 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,195 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,738 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,462 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,415 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 51,054 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,929 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,690 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,867 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,739 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,298 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,767 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,278 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,926 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,687 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,416 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,735 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,964 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,064 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 176,099 |
| Biggest Cities in Japan | 0 | - | 4.69 | 82,827 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,227 |
| Biggest Cities in France | 0 | - | 4.70 | 223,260 |
| Biggest Cities in Spain | 0 | - | 4.64 | 170,605 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,839 |
| Biggest Cities in Poland | 0 | - | 4.63 | 53,703 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,947 |
| Biggest Cities in China | 0 | - | 4.52 | 157,906 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,525 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,112 |
| Biggest Cities in India | 0 | - | 4.70 | 67,562 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,438 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,615 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,082 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,753 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,183 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,385 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,987 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,509 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,825 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,994 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,689 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,073 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,090 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,783 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,399 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,952 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,172 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,834 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 106,902 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,295 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,358 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,533 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,372 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,296 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,521 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,155 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,934 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 75,938 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 91,339 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,040 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,309 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,912 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,480 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,643 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,610 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,705 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,871 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,019 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,460 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,005 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,915 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,643 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,457 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,077 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,889 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,523 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,520 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,183 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,529 |
