| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 112,338 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,192 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,157 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,627 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,651 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,351 |
| US States and State Capitals Quiz | 0 | - | 4.99 | 158,168 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,714 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,133 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,519 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,899 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,881 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,235 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,508 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,313 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,479 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,689 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 35,923 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,859 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,381 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,163 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,467 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,676,424 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,113 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,044 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,530 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,493 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,619 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,733 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,621 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,716 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,377 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,434 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,074 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,325 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,460 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 52,972 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,762 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,080 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,664 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,597 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,380 |
| Biggest Cities in the United States | 0 | - | 4.93 | 965,435 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,554 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 38,931 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,022 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,260 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,726 |
| Biggest Cities in Europe | 0 | - | 4.70 | 541,693 |
| Largest City by Island | 0 | - | 4.87 | 70,972 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,294 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,433 |
| Biggest European Cities by Century | 0 | - | 4.98 | 139,375 |
| Megacities on a World Map | 0 | - | 4.98 | 250,566 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,155 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 572,765 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,732 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,781 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,667 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,591 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 40,151 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,543 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 54,846 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 94,176 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,922 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 96,912 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,013 |
| Biggest Cities in California | 0 | - | 4.35 | 139,161 |
| Biggest Cities in Florida | 0 | - | 4.23 | 71,741 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,373 |
| Biggest Cities in Pennsylvania | 0 | - | 4.12 | 45,182 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,051 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,067 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,562 |
| Biggest Cities in Texas | 0 | - | 4.28 | 118,569 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,037 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,855 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,555 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,722 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,439 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,207 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,376 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 31,907 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,261 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 87,946 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,496 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,052 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,077 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 90,997 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,824 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,692 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,223 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,450 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 37,962 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 83,949 |
| Biggest Cities in New Jersey | 0 | - | 4.12 | 27,091 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,003 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,546 |
| Biggest Cities in Alaska | 0 | - | 4.29 | 25,704 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,404 |
| Biggest Cities in Illinois | 0 | - | 4.36 | 26,745 |
| Biggest Cities in Louisiana | 0 | - | 4.17 | 19,882 |
| Biggest Cities in Massachusetts | 0 | - | 4.39 | 30,394 |
| Biggest Cities in Michigan | 0 | - | 3.98 | 34,044 |
| Biggest Cities in Missouri | 0 | - | 4.25 | 17,273 |
| Biggest Cities in Tennessee | 0 | - | 4.26 | 20,752 |
| Biggest Cities in Indiana | 0 | - | 4.27 | 26,822 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,825 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,301 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,498 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 122,859 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,186 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.61 | 65,297 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,840 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.29 | 114,874 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,545 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,518 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 40,679 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.58 | 42,632 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,347 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,911 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,745 |
| Countries with Megacities | 0 | - | 4.99 | 246,305 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,744 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,781 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,833 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,412 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,755 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,290 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,515 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,696 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,173 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,850 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,885 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,653 |
| Biggest City by Region | 0 | - | 4.50 | 35,977 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,878 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,997 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,208 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,891 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,701 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,384 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,742 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,235 |
| The Most Populous U.S. City by Category | 0 | - | 4.35 | 22,246 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,730 |
| Biggest Cities in Japan | 0 | - | 4.67 | 82,474 |
| Biggest Cities in Russia | 0 | - | 4.49 | 81,986 |
| Biggest Cities in France | 0 | - | 4.69 | 221,856 |
| Biggest Cities in Spain | 0 | - | 4.63 | 169,704 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,611 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,410 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,072 |
| Biggest Cities in China | 0 | - | 4.53 | 156,859 |
| All Cities in China with Population of 1 Million | 0 | - | 4.80 | 45,296 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,737 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,937 |
| Biggest Cities in India | 0 | - | 4.70 | 67,288 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,301 |
| Which City in Canada? | 0 | - | 4.82 | 56,621 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 117,336 |
| U.S. State Flags | 0 | - | 4.89 | 166,779 |
| Hawaiian Islands | 0 | - | 4.83 | 42,410 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,066 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,786 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,085 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,092 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,191 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,787 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,313 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,488 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,237 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,291 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,433 |
| Biggest Cities in History | 0 | - | 4.52 | 89,059 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,084 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 39,837 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,162 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.41 | 23,542 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,365 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,160 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 35,963 |
| Cities of Ireland | 0 | - | 4.51 | 50,291 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,082 |
| Biggest Cities in Georgia | 0 | - | 3.96 | 23,741 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,429 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 115,899 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,512 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 121,827 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,064 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 125,924 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,343 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,189 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,195 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,533 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,499 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,737 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,131 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,026 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 168,988 |
