| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 112,297 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,130 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,609 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,625 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,314 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,033 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,633 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,098 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,686 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,509 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,425 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,191 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,221 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 31,900 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,892 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,871 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,273 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,280 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,460 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,663 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,365 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,143 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,232 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,443 |
| Biggest Cities in the United States | 0 | - | 4.93 | 965,089 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,487 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,033 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,472 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,429 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,523 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,682 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,630 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,335 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,398 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.29 | 114,826 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,412 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 52,944 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,063 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,642 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,566 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,281 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,707 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,676,095 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,611 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 572,623 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,747 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 38,925 |
| Biggest Cities in Germany | 0 | - | 4.95 | 290,977 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,222 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,694 |
| Biggest Cities in Europe | 0 | - | 4.70 | 541,574 |
| Largest City by Island | 0 | - | 4.87 | 70,950 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,241 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,404 |
| Biggest European Cities by Century | 0 | - | 4.98 | 134,822 |
| Megacities on a World Map | 0 | - | 4.98 | 250,331 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,135 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,719 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,754 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,663 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,586 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 40,145 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,479 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 54,838 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 94,156 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,918 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 96,878 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,006 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 166,995 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,759 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,337 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 30,960 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,257 |
| Hawaiian Islands | 0 | - | 4.83 | 42,402 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,537 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,483 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,040 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,069 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 90,990 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,814 |
| US States and State Capitals Quiz | 0 | - | 4.99 | 158,079 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,476 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 122,843 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,075 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,442 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 37,954 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,685 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 17,924 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 35,919 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,856 |
| West Virginia Counties | 0 | - | 4.61 | 33,489 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,564 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,118 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,874 |
| Countries with Megacities | 0 | - | 4.99 | 246,215 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,793 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,741 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,261 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,678 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 83,940 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,181 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,220 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,842 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,881 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,177 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,648 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.61 | 65,293 |
| Biggest City by Region | 0 | - | 4.50 | 35,970 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,868 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,838 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,995 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,202 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,887 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,379 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,732 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,233 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,723 |
| Biggest Cities in Japan | 0 | - | 4.67 | 82,459 |
| Biggest Cities in Russia | 0 | - | 4.49 | 81,982 |
| Biggest Cities in France | 0 | - | 4.69 | 221,811 |
| Biggest Cities in Spain | 0 | - | 4.63 | 169,676 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,603 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,400 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,542 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,063 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,512 |
| Biggest Cities in China | 0 | - | 4.53 | 156,837 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,931 |
| Biggest Cities in India | 0 | - | 4.70 | 67,284 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,271 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 40,660 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,200 |
| Countries Closest to Maine | 0 | - | 4.84 | 66,371 |
| California Cities Map Quiz | 0 | - | 4.50 | 87,604 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 60,602 |
| New York Cities Map Quiz | 0 | - | 4.54 | 42,019 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 48,466 |
| Rivers of the United States | 0 | - | 4.93 | 65,428 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,729 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,704 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,755 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,406 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,493 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,154 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,278 |
| Biggest Cities in History | 0 | - | 4.52 | 89,043 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,056 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,157 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,700 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,149 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 35,953 |
| The Most Populous U.S. City by Category | 0 | - | 4.35 | 22,242 |
| All Cities in China with Population of 1 Million | 0 | - | 4.80 | 45,286 |
| Biggest Cities in California | 0 | - | 4.35 | 139,152 |
| Biggest Cities in Florida | 0 | - | 4.23 | 71,737 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,365 |
| Biggest Cities in Pennsylvania | 0 | - | 4.12 | 45,178 |
| 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 | 25,031 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,393 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 115,870 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,377 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 121,802 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,037 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 125,902 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,097 |
| Which City in Canada? | 0 | - | 4.82 | 56,607 |
| Countries that Visit Florida the Most | 0 | - | 4.70 | 70,817 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 117,317 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 57,593 |
| U.S. State Flags | 0 | - | 4.89 | 166,706 |
| U.S. States that Border Canada | 0 | - | 4.91 | 181,941 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,063 |
| State Quiz - Florida | 0 | - | 4.47 | 61,894 |
| State Quiz - Texas | 0 | - | 4.43 | 62,453 |
| State Quiz - New York | 0 | - | 4.52 | 45,697 |
| State Quiz - California | 0 | - | 4.68 | 63,910 |
| State Quiz - Arizona | 0 | - | 4.44 | 36,460 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,710 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,052 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,091 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,173 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,763 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,296 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,473 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,227 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,830 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,430 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,966 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,651 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,456 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,171 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,363 |
| Cities of Ireland | 0 | - | 4.51 | 50,281 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,081 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,307 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,165 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,185 |
