| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 115,459 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,861 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,041 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,288 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,866 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,065 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 347,877 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,906 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,274 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,339 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,991 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,691 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,395 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,319 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,400 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,456 |
| Biggest Cities in the World | 0 | - | 4.92 | 803,720 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,344 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,462 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,170 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,821 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,059 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,850 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,755 |
| Biggest Cities in the United States | 0 | - | 4.94 | 984,599 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,526 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,291 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,723 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,652 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,844 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,216 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,081 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,563 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,087 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.30 | 118,062 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,735 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,477 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,545 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,073 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,199 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,866 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,323 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,696,354 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,428 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 580,918 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,237 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,507 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,725 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,728 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,384 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,416 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,349 |
| Largest City by Island | 0 | - | 4.87 | 72,285 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,324 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,506 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,001 |
| Megacities on a World Map | 0 | - | 4.98 | 256,236 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 91,663 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,661 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,478 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,120 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,960 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,492 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,813 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 55,356 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 35,168 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,993 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,444 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,380 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,702 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,880 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,431 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,830 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,020 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,338 |
| Hawaiian Islands | 0 | - | 4.83 | 42,862 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,620 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,239 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,899 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,695 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,435 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 67,743 |
| US States and State Capitals | 0 | - | 4.99 | 164,651 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,752 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,771 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,515 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,918 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,489 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,014 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,350 |
| Saint Lucia Country Quiz | 0 | - | 4.68 | 18,131 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,391 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,202 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,634 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,837 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,535 |
| Countries with Megacities | 0 | - | 4.99 | 266,032 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,322 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,784 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,583 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,906 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,788 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,541 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 509,126 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,962 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,614 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,936 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,107 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,546 |
| Biggest City by Region | 0 | - | 4.50 | 36,341 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,271 |
| Biggest Cities by Latitude Range | 0 | - | 4.80 | 32,033 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,056 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,276 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,415 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,476 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,472 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,312 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,522 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,599 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,391 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,682 |
| Biggest Cities in France | 0 | - | 4.70 | 224,945 |
| Biggest Cities in Spain | 0 | - | 4.64 | 171,880 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,195 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,186 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,694 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,665 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,122 |
| Biggest Cities in China | 0 | - | 4.53 | 159,551 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,396 |
| Biggest Cities in India | 0 | - | 4.64 | 67,979 |
| Biggest Cities in Italy | 0 | - | 4.77 | 242,027 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,046 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,908 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,459 |
| California Cities Map Quiz | 0 | - | 4.50 | 88,120 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 60,972 |
| New York Cities Map Quiz | 0 | - | 4.55 | 42,325 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,949 |
| Rivers of the United States | 0 | - | 4.93 | 66,540 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,143 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,663 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,476 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,749 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,014 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,427 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,561 |
| Biggest Cities in History | 0 | - | 4.52 | 90,463 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,749 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,553 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,900 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.92 | 64,904 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,632 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,602 |
| The Most Populous U.S. City by Category | 0 | - | 4.37 | 22,449 |
| Biggest Cities in California | 0 | - | 4.35 | 140,245 |
| Biggest Cities in Florida | 0 | - | 4.25 | 72,313 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,851 |
| Biggest Cities in Pennsylvania | 0 | - | 4.13 | 45,499 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,367 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,789 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,924 |
| Biggest Cities in Texas | 0 | - | 4.29 | 119,581 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,250 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,990 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,043 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,836 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,427 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,893 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,557 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,619 |
| Which City in Canada? | 0 | - | 4.83 | 57,274 |
| Countries that Visit Florida the Most | 0 | - | 4.70 | 72,607 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,545 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,356 |
| U.S. State Flags | 0 | - | 4.89 | 172,189 |
| U.S. States that Border Canada | 0 | - | 4.91 | 186,212 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,461 |
| State Quiz - Florida | 0 | - | 4.47 | 62,518 |
| State Quiz - Texas | 0 | - | 4.43 | 63,099 |
| State Quiz - New York | 0 | - | 4.52 | 46,322 |
| State Quiz - California | 0 | - | 4.69 | 64,682 |
| State Quiz - Arizona | 0 | - | 4.44 | 36,851 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,370 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,166 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,830 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,077 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,456 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,583 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,718 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,103 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,138 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,667 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,123 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,893 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,830 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,702 |
| 100 Biggest Soviet Cities in 1989 with a Map | 0 | - | 4.97 | 29,998 |
| Largest Cities once part of the Byzantine Empire | 0 | - | 4.83 | 21,743 |
