| Biggest Cities in the World | 0 | - | 4.91 | 796,312 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 416,320 |
| Biggest Cities in the United States | 0 | - | 4.93 | 975,118 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,442 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,420 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,830 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 224,002 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,823 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 132,653 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,318 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,162 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,392 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,631 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,734 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,190 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,323 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,771 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,984 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,926 |
| Largest City by Island | 0 | - | 4.87 | 71,630 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,752 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,613 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,200 |
| Megacities on a World Map | 0 | - | 4.98 | 253,195 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 576,817 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,180 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,643 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,130 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,031 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,658 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,580 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,866 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 344,601 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,041 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,767 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,777 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,374 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,802 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,461 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,869 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,989 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,021 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,081 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,204 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,534 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,427 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,013 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,938 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,583 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,474 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,894 |
| Biggest Cities in Europe | 0 | - | 4.72 | 545,177 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,376 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,040 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,909 |
| Biggest City by Region | 0 | - | 4.50 | 36,114 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,046 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,144 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,317 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,153 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,355 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 152,015 |
| Biggest Cities in History | 0 | - | 4.52 | 89,986 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 75,164 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,346 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,376 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,559 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,920 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,127 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,273 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,455 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 41,329 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,086 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,430 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,167 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,489 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,073 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,839 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,487 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,612 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,836 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,632 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 72,996 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,146 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,027 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,752 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,530 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,374 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,228 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,511 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.68 | 62,864 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,627 |
| Biggest Cities in Latin America | 0 | - | 4.47 | 64,657 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,315 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,222 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,852 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,977 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 222,663 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,031 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,268 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,376 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,442,735 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,588 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,886 |
| Countries with Megacities | 0 | - | 4.99 | 256,756 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,754 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,916 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,052 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,917 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,528 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,440 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,949 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,789 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,901 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,861 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,769 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,330 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,819 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,907 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,461 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,142 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,961 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,326 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,022 |
| Longest Rivers in the UK | 0 | - | 4.42 | 13,775 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,865 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,576 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,681 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,504 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,327 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,640 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,243 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,326 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,887 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 51,154 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,330 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,982 |
| UK Rivers Map Quiz | 0 | - | 4.54 | 30,402 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,769 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 73,003 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,724 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,463 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,109 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,146 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,794 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,814 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,997 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,107 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 176,172 |
| Biggest Cities in Japan | 0 | - | 4.69 | 82,899 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,290 |
| Biggest Cities in France | 0 | - | 4.70 | 223,524 |
| Biggest Cities in Spain | 0 | - | 4.63 | 170,792 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,886 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 53,007 |
| Biggest Cities in Poland | 0 | - | 4.63 | 53,776 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,235 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,052 |
| Biggest Cities in China | 0 | - | 4.52 | 158,165 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,644 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,153 |
| Biggest Cities in India | 0 | - | 4.63 | 67,637 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,687 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,973 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,192 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,407 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,462 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,624 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,438 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,380 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,594 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,096 |
| Countries Closest to the Aegean Sea | 0 | - | 4.75 | 66,797 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,036 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,335 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,486 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,171 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,667 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,944 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,127 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,808 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,538 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,228 |
| Biggest Axis-Controlled Cities | 0 | - | 4.43 | 48,816 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,428 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,559 |
| Cities of Ireland | 0 | - | 4.51 | 50,554 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,163 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,123 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,027 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,692 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,068 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,046 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,338 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,139 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,421 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,050 |
| Bay of Bengal Countries With an Empty Map | 0 | - | 4.64 | 75,429 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,746 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,862 |
