| Biggest Cities in the World | 0 | - | 4.91 | 797,553 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,715 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,246 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 224,600 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,120 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 133,316 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,617 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,359 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 416,865 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,674 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 55,384 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,895 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 63,911 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,504 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,059 |
| Biggest Cities in the United States | 0 | - | 4.94 | 976,819 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,792 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,214 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,193 |
| Largest City by Island | 0 | - | 4.87 | 71,767 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,853 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,796 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,341 |
| Megacities on a World Map | 0 | - | 4.98 | 253,886 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,241 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 577,511 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,279 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,819 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,397 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,193 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 345,128 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,595 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,005 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,780 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,947 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,238 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,876 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,796 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,989 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,488 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,508 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 114,028 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,848 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,472 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,085 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,615 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,126 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,121 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,149 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,305 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,676 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,635 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,121 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,474 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,064 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,946 |
| Biggest City by Region | 0 | - | 4.50 | 36,149 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,076 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,009 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,829 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,170 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,336 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,211 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,391 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,178 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,910 |
| Biggest Cities in Europe | 0 | - | 4.73 | 545,866 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,166 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 41,431 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 152,464 |
| Biggest Cities in History | 0 | - | 4.52 | 90,068 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 76,845 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,376 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,427 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 36,345 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,518 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,201 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,516 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,279 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,600 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,208 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,955 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,204 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,433 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,269 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,921 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 37,045 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 65,447 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,791 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,015 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,531 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,696 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,020 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,709 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,046 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,463 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,773 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,543 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,566 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,311 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,580 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,950 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,069 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 222,874 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,077 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,327 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,409 |
| Bay of Bengal Countries With an Empty Map | 0 | - | 4.64 | 75,465 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,444,226 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,949 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,203 |
| Countries with Megacities | 0 | - | 4.99 | 262,059 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,054 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,090 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,354 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,130 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,397 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,891 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,917 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,596 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,213 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,016 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,446 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,126 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,620 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,598 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,457 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 62,159 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 73,048 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,966 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,783 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,891 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,506 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,935 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,792 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,996 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,357 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,138 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 176,239 |
| Biggest Cities in Japan | 0 | - | 4.69 | 82,998 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,349 |
| Biggest Cities in France | 0 | - | 4.70 | 223,788 |
| Biggest Cities in Spain | 0 | - | 4.63 | 170,994 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,942 |
| Biggest Cities in Poland | 0 | - | 4.63 | 53,829 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,141 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,857 |
| Biggest Cities in China | 0 | - | 4.53 | 158,392 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,756 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,182 |
| Biggest Cities in India | 0 | - | 4.63 | 67,701 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,895 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,167 |
| UK Rivers Map Quiz | 0 | - | 4.54 | 30,427 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,812 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,616 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,559 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,763 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,323 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,445 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,996 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,798 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,150 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,195 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,808 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 53,061 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,280 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,053 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,271 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,464 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,524 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,662 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,468 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,420 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,636 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,422 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,479 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,541 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,317 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,788 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,062 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,221 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,850 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,572 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,276 |
| Biggest Axis-Controlled Cities | 0 | - | 4.44 | 48,847 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,452 |
| Cities of Ireland | 0 | - | 4.51 | 50,610 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,179 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,167 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,053 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,839 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,167 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,129 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,624 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,201 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,483 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,155 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,856 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,001 |
