| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 112,287 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,180 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,123 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,601 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,614 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,302 |
| US States and State Capitals Quiz | 0 | - | 4.99 | 158,049 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,586 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,074 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,506 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,886 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,864 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,210 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,171 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,263 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,449 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,650 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 35,919 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,855 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,361 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,132 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,439 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,676,006 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,090 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,029 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,445 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,399 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,483 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,645 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,603 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,577 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,316 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,379 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,015 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,208 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,399 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 52,936 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,741 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,052 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,629 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,549 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,249 |
| Biggest Cities in the United States | 0 | - | 4.93 | 964,966 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,459 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 38,922 |
| Biggest Cities in Germany | 0 | - | 4.95 | 290,943 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,195 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,672 |
| Biggest Cities in Europe | 0 | - | 4.70 | 541,518 |
| Largest City by Island | 0 | - | 4.87 | 70,938 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,212 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,394 |
| Biggest European Cities by Century | 0 | - | 4.98 | 131,706 |
| Megacities on a World Map | 0 | - | 4.98 | 250,211 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,125 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 572,553 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,709 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,741 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,660 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,584 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 40,143 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,463 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 54,834 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 94,141 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,915 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 96,863 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,000 |
| Biggest Cities in California | 0 | - | 4.35 | 139,147 |
| Biggest Cities in Florida | 0 | - | 4.23 | 71,733 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,363 |
| Biggest Cities in Pennsylvania | 0 | - | 4.12 | 45,176 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 166,982 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,062 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,554 |
| Biggest Cities in Texas | 0 | - | 4.28 | 118,559 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,030 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,708 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,526 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,681 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,423 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,189 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,324 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 31,899 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,253 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 87,916 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,477 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,035 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,066 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 90,983 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,801 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,682 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,003 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,440 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 37,950 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 83,935 |
| Biggest Cities in New Jersey | 0 | - | 4.12 | 27,086 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,002 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,544 |
| Biggest Cities in Alaska | 0 | - | 4.29 | 25,698 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,397 |
| Biggest Cities in Illinois | 0 | - | 4.36 | 26,743 |
| Biggest Cities in Louisiana | 0 | - | 4.17 | 19,880 |
| Biggest Cities in Massachusetts | 0 | - | 4.39 | 30,386 |
| Biggest Cities in Michigan | 0 | - | 3.98 | 34,043 |
| Biggest Cities in Missouri | 0 | - | 4.25 | 17,269 |
| Biggest Cities in Tennessee | 0 | - | 4.26 | 20,749 |
| Biggest Cities in Indiana | 0 | - | 4.27 | 26,809 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,451 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,034 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,459 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 122,839 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,170 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.61 | 65,291 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,836 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.29 | 114,814 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,539 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,511 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 40,645 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.58 | 42,626 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,154 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,855 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,720 |
| Countries with Megacities | 0 | - | 4.99 | 246,170 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,686 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,746 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,776 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,396 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,732 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,240 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,486 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,665 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,143 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,831 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,880 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,644 |
| Biggest City by Region | 0 | - | 4.50 | 35,964 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,863 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,995 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,201 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,884 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,700 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,377 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,731 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,231 |
| The Most Populous U.S. City by Category | 0 | - | 4.35 | 22,239 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,711 |
| Biggest Cities in Japan | 0 | - | 4.67 | 82,453 |
| Biggest Cities in Russia | 0 | - | 4.49 | 81,975 |
| Biggest Cities in France | 0 | - | 4.69 | 221,794 |
| Biggest Cities in Spain | 0 | - | 4.63 | 169,663 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,596 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,400 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,059 |
| Biggest Cities in China | 0 | - | 4.53 | 156,832 |
| All Cities in China with Population of 1 Million | 0 | - | 4.80 | 45,283 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,702 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,930 |
| Biggest Cities in India | 0 | - | 4.70 | 67,280 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,254 |
| Which City in Canada? | 0 | - | 4.82 | 56,604 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 117,305 |
| U.S. State Flags | 0 | - | 4.89 | 166,671 |
| Hawaiian Islands | 0 | - | 4.83 | 42,395 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,061 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,682 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,034 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,085 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,156 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,748 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,282 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,465 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,223 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,270 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,427 |
| Biggest Cities in History | 0 | - | 4.52 | 89,037 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,048 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 39,834 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,152 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.41 | 23,540 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,362 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,143 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 35,949 |
| Cities of Ireland | 0 | - | 4.51 | 50,277 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,081 |
| Biggest Cities in Georgia | 0 | - | 3.96 | 23,739 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,378 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 115,859 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,318 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 121,781 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,022 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 125,888 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,291 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,144 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,179 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,499 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,478 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,712 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,089 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 163,986 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 168,955 |
