| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,348 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.90 | 81,706 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,838 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,955 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,042 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,112 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,417 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 345,858 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,021 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,205 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,258 |
| Biggest Cities in the World | 0 | - | 4.91 | 799,143 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,429 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,841 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,393 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,219 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,084 |
| US States and State Capitals | 0 | - | 4.99 | 162,550 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,335 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,473 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 417,786 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,273 |
| Biggest Cities in the United States | 0 | - | 4.94 | 978,726 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,239 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,690,111 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,912 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,987 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,611 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,160 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,395 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,159 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 133,992 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,863 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,551 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,158 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,969 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 59,793 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,753 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,077 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,559 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,670 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,453 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,343 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,556 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 506,719 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,579 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,456 |
| Biggest Cities in Europe | 0 | - | 4.73 | 546,495 |
| Largest City by Island | 0 | - | 4.87 | 71,893 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,021 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,992 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,555 |
| Megacities on a World Map | 0 | - | 4.98 | 254,664 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 578,356 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,366 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,967 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,726 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,067 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,096 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,211 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,797 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,567 |
| Biggest Cities in California | 0 | - | 4.35 | 139,906 |
| Biggest Cities in Florida | 0 | - | 4.24 | 72,123 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,688 |
| Biggest Cities in Pennsylvania | 0 | - | 4.12 | 45,412 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,419 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,264 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,656 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,782 |
| Biggest Cities in Texas | 0 | - | 4.29 | 119,356 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,197 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,281 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 73,107 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,838 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.44 | 88,740 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,561 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,982 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,842 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,407 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,445 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,197 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,581 |
| U.S. State Flags | 0 | - | 4.89 | 170,578 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,324 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,319 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,921 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,546 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 53,151 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,964 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,461 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,758 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,334 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,503 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,305 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 66,262 |
| Biggest Cities in New Jersey | 0 | - | 4.12 | 28,443 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,170 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,760 |
| Biggest Cities in Alaska | 0 | - | 4.29 | 25,896 |
| Biggest Cities in Illinois | 0 | - | 4.36 | 26,938 |
| Biggest Cities in Louisiana | 0 | - | 4.17 | 19,983 |
| Biggest Cities in Massachusetts | 0 | - | 4.39 | 30,602 |
| Biggest Cities in Michigan | 0 | - | 3.98 | 34,191 |
| Biggest Cities in Missouri | 0 | - | 4.25 | 17,427 |
| Biggest Cities in Tennessee | 0 | - | 4.26 | 20,896 |
| Biggest Cities in Indiana | 0 | - | 4.24 | 27,038 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,446,043 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,418 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,144 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,214 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,671 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,475 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,521 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,991 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.30 | 117,137 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,922 |
| Win the U.S. Presidential Election | 0 | - | 4.78 | 627,909 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,532 |
| Countries with Megacities | 0 | - | 4.99 | 263,570 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,374 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,289 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,650 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,324 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,596 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,093 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,997 |
| Biggest City by Region | 0 | - | 4.50 | 36,231 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,147 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,192 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,355 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,277 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 44,024 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 37,101 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,421 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,328 |
| Biggest Cities in Japan | 0 | - | 4.69 | 83,120 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,438 |
| Biggest Cities in France | 0 | - | 4.70 | 224,043 |
| Biggest Cities in Spain | 0 | - | 4.63 | 171,189 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,008 |
| Biggest Cities in Poland | 0 | - | 4.63 | 53,916 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,642 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,275 |
| Biggest Cities in China | 0 | - | 4.53 | 158,660 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,891 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,226 |
| Biggest Cities in India | 0 | - | 4.64 | 67,763 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,136 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 41,594 |
| Which City in Canada? | 0 | - | 4.83 | 57,082 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,190 |
| Hawaiian Islands | 0 | - | 4.83 | 42,722 |
| U.S. States that Border Canada | 0 | - | 4.91 | 184,999 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,739 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,880 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,854 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,653 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,933 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,409 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,563 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,624 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,475 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,921 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,182 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,330 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,907 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,094 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 152,612 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,593 |
| Biggest Cities in History | 0 | - | 4.52 | 90,174 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 77,571 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,420 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,845 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,600 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,472 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,406 |
| The Most Populous U.S. City by Category | 0 | - | 4.37 | 22,389 |
| Cities of Ireland | 0 | - | 4.51 | 50,668 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,189 |
| Biggest Cities in Georgia | 0 | - | 3.96 | 23,910 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,380 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,675 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,454 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,023 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,425 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,145 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,028 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,312 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,207 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,768 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,265 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,556 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,272 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,070 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,998 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,150 |
| Cartoon Versions of U.S. States | 0 | - | 4.75 | 63,924 |
| Satellite Images - U.S. States | 0 | - | 4.53 | 45,171 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.44 | 75,521 |
