| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 143,085 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 70,466 |
| 500 Biggest US Cities | 0 | - | 4.88 | 100,044 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.91 | 29,951 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.82 | 53,389 |
| Biggest Cities in the World | 0 | - | 4.90 | 697,241 |
| Biggest Cities in Asia | 0 | - | 4.94 | 97,277 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.91 | 44,134 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 42,619 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 93,196 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.50 | 62,566 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 40,686 |
| Biggest "Saint" Cities - United States | 0 | - | 4.47 | 34,265 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.45 | 37,173 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.76 | 39,095 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 376,052 |
| Biggest Cities in the United States | 0 | - | 4.93 | 843,886 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 337,316 |
| Biggest City by Time Zone | 0 | - | 4.84 | 55,427 |
| Biggest City in Every Country | 0 | - | 4.98 | 80,628 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 61,884 |
| Five Most Populated Cities by Continent | 0 | - | 4.95 | 172,740 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 93,482 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 98,647 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 66,185 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 202,165 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.84 | 72,768 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 121,918 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.50 | 41,194 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.95 | 66,386 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 42,807 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 307,929 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.89 | 99,293 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 60,475 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 46,777 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 56,196 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 108,496 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 94,920 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 109,784 |
| Biggest Cities by Language | 0 | - | 4.95 | 215,679 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 65,201 |
| Most Populous World Capitals | 0 | - | 4.93 | 153,639 |
| Biggest European Cities by Century | 0 | - | 4.98 | 119,903 |
| Megacities on a World Map | 0 | - | 4.98 | 222,895 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.84 | 44,492 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 104,258 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 519,912 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 60,528 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 64,230 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 85,830 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 152,580 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 155,985 |
| Biggest Cities in Europe | 0 | - | 4.75 | 471,150 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.88 | 51,346 |
| Biggest Cities in France - Extreme | 0 | - | 4.90 | 44,931 |
| Megacities on an Empty Map | 0 | - | 4.95 | 88,374 |
| Biggest Cities in Germany | 0 | - | 4.95 | 266,456 |
| Biggest Cities in Canada | 0 | - | 4.66 | 121,795 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.45 | 60,847 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.38 | 37,679 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.23 | 93,963 |
| Cities on Interstate 90 on a Map | 0 | - | 4.43 | 28,889 |
| Biggest Cities in Sweden | 0 | - | 4.84 | 37,657 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 78,290 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 64,231 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 68,360 |
| Cities of China (With Some Help) | 0 | - | 4.87 | 28,520 |
| Biggest English Cities by Century | 0 | - | 4.90 | 100,229 |
| U.S. Cities by Hispanic Population | 0 | - | 4.27 | 24,674 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.78 | 69,330 |
| Biggest Mediterranean Cities | 0 | - | 4.57 | 87,109 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.63 | 37,364 |
| The Most Populous U.S. City by Category | 0 | - | 4.31 | 20,641 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.46 | 28,774 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 98,129 |
| Biggest Cities by Trait #1 | 0 | - | 4.45 | 43,263 |
| Biggest City by Region | 0 | - | 4.50 | 33,938 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 53,794 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,572 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 56,681 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.70 | 75,012 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 77,549 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 47,285 |
| Biggest English-Speaking Cities | 0 | - | 4.42 | 136,868 |
| Biggest European Cities by Letter | 0 | - | 4.66 | 119,937 |
| Biggest City by Island | 0 | - | 4.57 | 45,996 |
| Biggest Cities in History | 0 | - | 4.50 | 81,434 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 68,351 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.65 | 63,197 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.97 | 78,616 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.50 | 40,418 |
| Biggest World Cities in 1850 | 0 | - | 4.63 | 64,942 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 32,089 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 33,427 |
| Saint Lucia Country Quiz | 0 | - | 4.66 | 16,489 |
| Biggest Cities in North Carolina | 0 | - | 4.65 | 32,352 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 113,437 |
| Biggest Cities Starting With D | 0 | - | 4.49 | 107,669 |
| Biggest Cities Starting With H | 0 | - | 4.57 | 98,720 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 111,614 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 130,146 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 115,755 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 52,865 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.58 | 36,800 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.93 | 57,508 |
| Biggest Cities in Japan | 0 | - | 4.65 | 76,212 |
| Biggest Cities in Russia | 0 | - | 4.49 | 77,370 |
| Biggest Cities in France | 0 | - | 4.76 | 201,869 |
| Biggest Cities in Spain | 0 | - | 4.55 | 155,419 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 50,869 |
| Biggest Cities in Poland | 0 | - | 4.57 | 48,741 |
| Biggest Cities in the UK | 0 | - | 4.46 | 94,614 |
| Biggest Cities in China | 0 | - | 4.57 | 140,648 |
| Cities of Ireland | 0 | - | 4.43 | 40,123 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 43,937 |
| Biggest Cities in India | 0 | - | 4.71 | 62,984 |
| Biggest Cities in Italy | 0 | - | 4.66 | 219,949 |
| US States Quiz | 0 | - | 5.00 | 14,915,980 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 138,997 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 111,006 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 70,516 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 39,140 |
| Biggest Coastal City by Country | 0 | - | 4.60 | 27,099 |
| Biggest City by Region #2 | 0 | - | 4.46 | 23,300 |
| Biggest Cities by Latitude | 0 | - | 4.76 | 26,372 |
| Largest World Cities With Four Letters | 0 | - | 4.41 | 43,449 |
| Northernmost Major City by Country | 0 | - | 4.56 | 31,105 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.95 | 29,968 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.79 | 100,251 |
| Biggest Nordic Cities | 0 | - | 4.38 | 59,830 |
| Five Biggest Cities by Country | 0 | - | 4.66 | 154,127 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.78 | 42,603 |
| Flags to Largest Cities | 0 | - | 4.54 | 32,654 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.48 | 21,045 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 48,937 |
| Biggest Cities in Mexico | 0 | - | 4.50 | 34,690 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.75 | 65,972 |
| All Cities in China with Population of 1 Million | 0 | - | 4.79 | 39,226 |
| All Cities in India with Population of 1 Million | 0 | - | 4.79 | 41,484 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 22,923 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 30,191 |
| Biggest Cities in California | 0 | - | 4.35 | 131,430 |
| Biggest Cities in Florida | 0 | - | 4.20 | 67,929 |
| Biggest Cities in New York State | 0 | - | 4.29 | 56,291 |
| Biggest Cities in Pennsylvania | 0 | - | 4.14 | 43,041 |
| Biggest Cities in Ohio | 0 | - | 4.37 | 46,126 |
| Biggest Cities in Texas | 0 | - | 4.26 | 112,124 |
| Biggest Cities in Wisconsin | 0 | - | 4.45 | 23,631 |
| Biggest World Cities A-Z | 0 | - | 4.57 | 204,882 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,322,908 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 352,188 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 128,036 |
| Countries with Megacities | 0 | - | 4.99 | 200,413 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 173,910 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,241 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 97,391 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 65,240 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 251,302 |
| Largest Cities in Alexander's Empire | 0 | - | 4.56 | 38,731 |
| Biggest Cities in the World - 2100 | 0 | - | 4.29 | 82,456 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 24,593 |
| Largest Nordic Cities on a Map | 0 | - | 4.79 | 23,857 |
| Biggest Urban Areas in the UK | 0 | - | 4.40 | 168,614 |
| Biggest Cities in Portugal | 0 | - | 4.42 | 19,026 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,919 |
| Biggest Cities Starting With B | 0 | - | 4.36 | 149,663 |
| Biggest Cities Starting With C | 0 | - | 4.07 | 97,693 |
| Biggest Cities Starting With K | 0 | - | 4.30 | 79,457 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 115,851 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 117,281 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,541,423 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 62,236 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 125,683 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.96 | 279,320 |
| 10 Longest Rivers in the United States | 0 | - | 4.82 | 35,297 |
| U.S. States with the Longest International Borders | 0 | - | 4.81 | 41,863 |
| US States with an Empty Map | 0 | - | 5.00 | 560,220 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 72,457 |
| Louisiana Purchase with a Map | 0 | - | 4.95 | 36,989 |
| U.S. States or European Countries by Population | 0 | - | 4.98 | 116,988 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.77 | 19,457 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 117,717 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 67,002 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 247,203 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 110,049 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 103,989 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 71,690 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 51,078 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.79 | 65,406 |
| Biggest Cities by Trait #2 | 0 | - | 4.38 | 14,287 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.41 | 13,271 |
| U.S. State Capitals Map Quiz | 0 | - | 4.91 | 127,220 |
| Countries Closest to Alaska | 0 | - | 4.91 | 99,989 |
| Countries Closest to Maine | 0 | - | 4.85 | 59,604 |
| Hawaiian Islands Map Quiz | 0 | - | 4.88 | 21,188 |
| Great Plains States and Provinces on a Map | 0 | - | 4.94 | 38,826 |
| Rivers of the United States | 0 | - | 4.92 | 57,707 |
| Name a Valid U.S. State #1 | 0 | - | 4.95 | 186,726 |
| Top 10 Coldest U.S. States | 0 | - | 4.91 | 101,286 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 101,816 |
