| Biggest Cities in the World | 0 | - | 4.91 | 795,964 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,376 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,750 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 223,886 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,769 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 132,507 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,269 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,117 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 416,134 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,343 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,588 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,702 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,158 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,289 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,699 |
| Biggest Cities in the United States | 0 | - | 4.93 | 974,689 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,335 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,944 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,868 |
| Largest City by Island | 0 | - | 4.87 | 71,591 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,716 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,567 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,170 |
| Megacities on a World Map | 0 | - | 4.98 | 252,971 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,032 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 576,558 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,152 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,608 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,041 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,988 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 344,433 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,431 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,613 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,504 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,840 |
| Megacities on an Empty Map | 0 | - | 4.97 | 117,977 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,732 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,494 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,899 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,187 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,442 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 113,727 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,762 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,360 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,700 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,411 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,787 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,941 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,987 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,169 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,490 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,369 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,987 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,350 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,033 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,903 |
| Biggest City by Region | 0 | - | 4.50 | 36,106 |
| Most Populous 2nd Cities | 0 | - | 4.77 | 57,040 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,908 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,502 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,138 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,312 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,145 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,348 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,807 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,859 |
| Biggest Cities in Europe | 0 | - | 4.72 | 545,021 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,113 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 41,304 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 151,991 |
| Biggest Cities in History | 0 | - | 4.52 | 89,965 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 73,355 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,335 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,366 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 36,269 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,477 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,062 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,413 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,133 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,460 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,047 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,811 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,126 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,354 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,220 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,795 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,988 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 59,343 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,564 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,795 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,330 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,606 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 72,987 |
| Biggest Cities in Latin America | 0 | - | 4.47 | 64,645 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,019 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 166,278 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,745 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,528 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,497 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,206 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,551 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,823 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,950 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 222,603 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,015 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,253 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,368 |
| Bay of Bengal Countries With an Empty Map | 0 | - | 4.64 | 75,417 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,442,321 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,476 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,769 |
| Countries with Megacities | 0 | - | 4.99 | 249,958 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,616 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,846 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,922 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,822 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,317 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,854 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,903 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,434 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,128 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,946 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,298 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,999 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,564 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,508 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,430 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 51,130 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,963 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,942 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,716 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,768 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,452 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,890 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,761 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,975 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,323 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,095 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 176,155 |
| Biggest Cities in Japan | 0 | - | 4.69 | 82,877 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,272 |
| Biggest Cities in France | 0 | - | 4.70 | 223,455 |
| Biggest Cities in Spain | 0 | - | 4.63 | 170,746 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,873 |
| Biggest Cities in Poland | 0 | - | 4.63 | 53,751 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,023 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,800 |
| Biggest Cities in China | 0 | - | 4.52 | 158,111 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,612 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,141 |
| Biggest Cities in India | 0 | - | 4.63 | 67,615 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,605 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,079 |
| UK Rivers Map Quiz | 0 | - | 4.54 | 30,395 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,623 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,466 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,253 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,581 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,215 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,290 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,844 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,768 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,092 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,139 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,792 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,987 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,219 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,943 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,165 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,382 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,434 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,598 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,419 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,362 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,575 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,912 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,286 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,456 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,113 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,625 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,906 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,096 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,782 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,535 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,213 |
| Biggest Axis-Controlled Cities | 0 | - | 4.43 | 48,800 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,421 |
| Cities of Ireland | 0 | - | 4.51 | 50,540 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,153 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,108 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,022 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,650 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,033 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,022 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,215 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,123 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,395 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,019 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,714 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,816 |
