| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,444 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,831 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,962 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,703 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,597 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 112,753 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,700 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,627 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,404 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 35,980 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,915 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,752 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,777 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,009 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.98 | 100,022 |
| Biggest Cities in the World | 0 | - | 4.91 | 791,805 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,561 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,489 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,632 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,679,461 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,233 |
| Biggest City by Time Zone | 0 | - | 4.88 | 66,878 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,987 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,484 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,105 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,711 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 130,790 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,747 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,677 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,542 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,270 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 574,029 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,780 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,205 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,966 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,295 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,847 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 66,854 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,728 |
| Biggest Cities in the United States | 0 | - | 4.93 | 968,440 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,211 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,683 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,650 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,989 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 97,314 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,130 |
| Biggest Cities in California | 0 | - | 4.35 | 139,309 |
| Biggest Cities in Florida | 0 | - | 4.23 | 71,836 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,437 |
| Biggest Cities in Pennsylvania | 0 | - | 4.12 | 45,225 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,126 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,601 |
| Biggest Cities in Texas | 0 | - | 4.28 | 118,702 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,069 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,889 |
| Biggest Cities by Language | 0 | - | 4.96 | 241,647 |
| Biggest Cities in Europe | 0 | - | 4.70 | 542,714 |
| Largest City by Island | 0 | - | 4.87 | 71,167 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,473 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,705 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,516 |
| Megacities on a World Map | 0 | - | 4.98 | 251,451 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,369 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,898 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,003 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,744 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,652 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,197 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,053 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 54,917 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,236 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,317 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,346 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,188 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,663 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,806 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,540 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,295 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,966 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,961 |
| Megacities on an Empty Map | 0 | - | 4.96 | 104,221 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 31,967 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 38,055 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,084 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,591 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,178 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,160 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,080 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 49,056 |
| Biggest Cities in New Jersey | 0 | - | 4.12 | 27,138 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,030 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,598 |
| Biggest Cities in Alaska | 0 | - | 4.29 | 25,735 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,451 |
| Biggest Cities in Illinois | 0 | - | 4.36 | 26,784 |
| Biggest Cities in Louisiana | 0 | - | 4.17 | 19,911 |
| Biggest Cities in Massachusetts | 0 | - | 4.39 | 30,422 |
| Biggest Cities in Michigan | 0 | - | 3.98 | 34,072 |
| Biggest Cities in Missouri | 0 | - | 4.25 | 17,312 |
| Biggest Cities in Tennessee | 0 | - | 4.26 | 20,781 |
| Biggest Cities in Indiana | 0 | - | 4.27 | 26,856 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,657 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,996 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,218 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,244 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,514 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,296 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,334 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,879 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.29 | 115,396 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,244 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,608 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 40,892 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,863 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,079 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,714 |
| Countries with Megacities | 0 | - | 4.99 | 247,784 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,574 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,241 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,965 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,189 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,019 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,933 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,768 |
| Biggest City by Region | 0 | - | 4.50 | 36,024 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,938 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,057 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,247 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,966 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,749 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,540 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,841 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,279 |
| 100 Biggest Soviet Cities in 1989 with a Map | 0 | - | 4.97 | 29,627 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.92 | 64,090 |
| Largest Cities once part of the Byzantine Empire | 0 | - | 4.83 | 21,404 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,889 |
| Biggest Cities in Japan | 0 | - | 4.68 | 82,622 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,079 |
| Biggest Cities in France | 0 | - | 4.69 | 222,656 |
| Biggest Cities in Spain | 0 | - | 4.63 | 170,080 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,709 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,790 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,523 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,026 |
| Biggest Cities in the UK | 0 | - | 4.47 | 104,287 |
| Biggest Cities in China | 0 | - | 4.53 | 157,284 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,397 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,971 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,005 |
| Biggest Cities in India | 0 | - | 4.70 | 67,391 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,774 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,080 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,454 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,343 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,454 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,074 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,579 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,861 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,224 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,540 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,111 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,530 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,730 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,369 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,444 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,550 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,472 |
| Biggest Cities in History | 0 | - | 4.52 | 89,220 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,163 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 39,869 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,231 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.41 | 23,566 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,460 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,230 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 36,071 |
| The Most Populous U.S. City by Category | 0 | - | 4.36 | 22,283 |
| Cities of Ireland | 0 | - | 4.51 | 50,381 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,111 |
| Biggest Cities in Georgia | 0 | - | 3.96 | 23,789 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,631 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 116,081 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,719 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,032 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,344 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,110 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,658 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,453 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,386 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,738 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,654 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,915 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,355 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,279 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,297 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,237 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,207 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,043 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,103 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,889 |
