| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,359 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 81,794 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,847 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,032 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,055 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,113 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,420 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 345,892 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,029 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,211 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,260 |
| Biggest Cities in the World | 0 | - | 4.91 | 799,207 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,439 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,854 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,401 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,221 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,086 |
| US States and State Capitals | 0 | - | 4.99 | 162,592 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,342 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,479 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 417,813 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,283 |
| Biggest Cities in the United States | 0 | - | 4.94 | 978,825 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,257 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,690,217 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,914 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,996 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,625 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,182 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,406 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,165 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 134,012 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,870 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,555 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,172 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,975 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 59,816 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,759 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,082 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,566 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,677 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,473 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,344 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,572 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 506,750 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,591 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,467 |
| Biggest Cities in Europe | 0 | - | 4.73 | 546,518 |
| Largest City by Island | 0 | - | 4.87 | 71,899 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,026 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,003 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,561 |
| Megacities on a World Map | 0 | - | 4.98 | 254,680 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 578,412 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,371 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,973 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,743 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,081 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,104 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,214 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,806 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,569 |
| Biggest Cities in California | 0 | - | 4.35 | 139,909 |
| Biggest Cities in Florida | 0 | - | 4.24 | 72,129 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,694 |
| Biggest Cities in Pennsylvania | 0 | - | 4.13 | 45,415 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,437 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,266 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,660 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,784 |
| Biggest Cities in Texas | 0 | - | 4.29 | 119,360 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,199 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,292 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 73,115 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,841 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.44 | 88,857 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,562 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,985 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,843 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,408 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,455 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,198 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,585 |
| U.S. State Flags | 0 | - | 4.88 | 170,590 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,326 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,327 |
| 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 | 53,152 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,969 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,491 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,758 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,336 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,507 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,308 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 66,283 |
| Biggest Cities in New Jersey | 0 | - | 4.13 | 28,486 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,170 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,763 |
| Biggest Cities in Alaska | 0 | - | 4.29 | 25,896 |
| Biggest Cities in Illinois | 0 | - | 4.36 | 26,942 |
| Biggest Cities in Louisiana | 0 | - | 4.17 | 19,987 |
| Biggest Cities in Massachusetts | 0 | - | 4.39 | 30,605 |
| Biggest Cities in Michigan | 0 | - | 3.98 | 34,193 |
| Biggest Cities in Missouri | 0 | - | 4.25 | 17,427 |
| Biggest Cities in Tennessee | 0 | - | 4.26 | 20,898 |
| Biggest Cities in Indiana | 0 | - | 4.24 | 27,042 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,446,122 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,433 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,205 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,219 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,673 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,475 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,524 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,992 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.30 | 117,156 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,925 |
| Win the U.S. Presidential Election | 0 | - | 4.78 | 627,962 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,550 |
| Countries with Megacities | 0 | - | 4.99 | 263,622 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,384 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,291 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,665 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,331 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,599 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,095 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,998 |
| Biggest City by Region | 0 | - | 4.50 | 36,232 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,150 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,195 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,355 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,280 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 44,029 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,101 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,421 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,331 |
| Biggest Cities in Japan | 0 | - | 4.69 | 83,124 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,438 |
| Biggest Cities in France | 0 | - | 4.70 | 224,050 |
| Biggest Cities in Spain | 0 | - | 4.63 | 171,204 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,010 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,921 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,643 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,278 |
| Biggest Cities in China | 0 | - | 4.53 | 158,671 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,893 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,226 |
| Biggest Cities in India | 0 | - | 4.64 | 67,771 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,140 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 41,598 |
| Which City in Canada? | 0 | - | 4.83 | 57,087 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,197 |
| Hawaiian Islands | 0 | - | 4.83 | 42,727 |
| U.S. States that Border Canada | 0 | - | 4.91 | 185,014 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,743 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,892 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,860 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,662 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,938 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,416 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,567 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,625 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,485 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,922 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,187 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,336 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,910 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,099 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 152,656 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,594 |
| Biggest Cities in History | 0 | - | 4.52 | 90,179 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 77,591 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,422 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,846 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,600 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,473 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,409 |
| The Most Populous U.S. City by Category | 0 | - | 4.37 | 22,390 |
| Cities of Ireland | 0 | - | 4.51 | 50,670 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,189 |
| Biggest Cities in Georgia | 0 | - | 3.96 | 23,914 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,384 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,676 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,458 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,025 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,430 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,148 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,033 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,317 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,208 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,771 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,265 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,557 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,276 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,071 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,004 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,155 |
| Cartoon Versions of U.S. States | 0 | - | 4.75 | 63,927 |
| Satellite Images - U.S. States | 0 | - | 4.53 | 45,172 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.44 | 75,528 |
