| Biggest Cities in Mexico | 0 | - | 4.50 | 36,758 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 97,262 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 322,498 |
| Biggest Cities in Germany | 0 | - | 4.95 | 277,686 |
| Biggest Cities in the World | 0 | - | 4.91 | 739,943 |
| Biggest Cities in Asia | 0 | - | 4.94 | 102,863 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 46,730 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.94 | 46,284 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 39,138 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.90 | 86,685 |
| All Cities in India with Population of 1 Million | 0 | - | 4.82 | 44,085 |
| Biggest City by Time Zone | 0 | - | 4.86 | 60,352 |
| Biggest City in Every Country | 0 | - | 4.98 | 88,343 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 185,662 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 100,451 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 108,483 |
| Biggest Cities with Exceptions | 0 | - | 4.89 | 71,923 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 211,125 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.85 | 77,875 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 127,663 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 394,010 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.95 | 71,622 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 44,935 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 106,178 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 64,402 |
| Ten Southernmost Megacities | 0 | - | 4.82 | 48,613 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 60,967 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 117,420 |
| Biggest Cities in the United States | 0 | - | 4.94 | 899,766 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 349,411 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 151,363 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.97 | 40,910 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 110,117 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 544,623 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 74,486 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.92 | 34,172 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.89 | 107,039 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 57,186 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 50,731 |
| Cities of China (With Some Help) | 0 | - | 4.89 | 29,786 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.88 | 114,038 |
| Biggest Cities by Language | 0 | - | 4.95 | 222,543 |
| Largest City by Island | 0 | - | 4.90 | 65,061 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.94 | 67,204 |
| Most Populous World Capitals | 0 | - | 4.93 | 168,258 |
| Biggest European Cities by Century | 0 | - | 4.98 | 124,511 |
| Megacities on a World Map | 0 | - | 4.98 | 231,117 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 63,533 |
| All 3M Cities on the World Map | 0 | - | 4.94 | 68,652 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 98,372 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 159,091 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 53,418 |
| Biggest Cities in France - Extreme | 0 | - | 4.89 | 49,663 |
| Largest Nordic Cities on a Map | 0 | - | 4.83 | 33,394 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 160,660 |
| Biggest Cities in Europe | 0 | - | 4.74 | 512,689 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.47 | 62,652 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 58,241 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.68 | 76,860 |
| Megacities on an Empty Map | 0 | - | 4.95 | 92,392 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.81 | 66,212 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 70,516 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.43 | 13,948 |
| Biggest English Cities by Century | 0 | - | 4.89 | 102,844 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 35,388 |
| Biggest Cities in Washington State | 0 | - | 4.45 | 34,304 |
| Biggest Cities in North Carolina | 0 | - | 4.68 | 33,605 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 61,943 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 71,181 |
| Biggest Mediterranean Cities | 0 | - | 4.56 | 88,671 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.57 | 39,184 |
| Biggest Urban Areas in the UK | 0 | - | 4.41 | 171,889 |
| Biggest Cities in Japan | 0 | - | 4.68 | 79,624 |
| Biggest Cities in Russia | 0 | - | 4.48 | 79,581 |
| Biggest Cities in France | 0 | - | 4.70 | 210,951 |
| Biggest Cities in Spain | 0 | - | 4.56 | 162,275 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 53,237 |
| Biggest Cities in Poland | 0 | - | 4.57 | 50,919 |
| Biggest Cities in the UK | 0 | - | 4.47 | 99,093 |
| Biggest Cities in China | 0 | - | 4.47 | 148,164 |
| Cities of Ireland | 0 | - | 4.50 | 48,311 |
| Biggest Cities in Canada | 0 | - | 4.56 | 126,351 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 45,359 |
| Biggest Cities in India | 0 | - | 4.70 | 65,045 |
| Biggest Cities in Italy | 0 | - | 4.70 | 229,372 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.74 | 72,345 |
| All Cities in China with Population of 1 Million | 0 | - | 4.77 | 42,079 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 100,014 |
| Biggest Cities by Trait #1 | 0 | - | 4.43 | 44,098 |
| Biggest City by Region | 0 | - | 4.49 | 34,827 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 55,406 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 81,079 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,007 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 51,365 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 80,523 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 48,266 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 17,213 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 23,464 |
| Biggest Cities in California | 0 | - | 4.34 | 135,114 |
| Biggest Cities in Florida | 0 | - | 4.22 | 69,758 |
| Biggest Cities in New York State | 0 | - | 4.31 | 57,704 |
| Biggest Cities in Pennsylvania | 0 | - | 4.14 | 44,088 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 47,337 |
| Biggest Cities in Texas | 0 | - | 4.27 | 115,414 |
| Biggest Cities in Wisconsin | 0 | - | 4.45 | 24,313 |
| Biggest English-Speaking Cities | 0 | - | 4.43 | 139,908 |
| Biggest European Cities by Letter | 0 | - | 4.62 | 122,662 |
| Biggest Cities in History | 0 | - | 4.50 | 84,759 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 70,010 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.64 | 64,291 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,016 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 79,405 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.55 | 41,744 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 42,200 |
| Biggest "Saint" Cities - United States | 0 | - | 4.48 | 35,431 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.42 | 38,892 |
| Biggest World Cities in 1850 | 0 | - | 4.62 | 66,522 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.46 | 29,772 |
| Biggest Cities in Portugal | 0 | - | 4.42 | 19,781 |
| Biggest Cities Starting With A | 0 | - | 4.61 | 117,984 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 111,550 |
| Biggest Cities Starting With H | 0 | - | 4.55 | 103,102 |
| Biggest Cities Starting With L | 0 | - | 4.45 | 116,338 |
| Biggest Cities Starting With M | 0 | - | 4.49 | 135,595 |
| Biggest Cities Starting With P | 0 | - | 4.48 | 120,584 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 63,539 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.43 | 49,075 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.74 | 43,078 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.58 | 39,752 |
| Biggest U.S. Cities A-Z | 0 | - | 4.68 | 134,972 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 145,297 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 116,332 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 71,713 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 39,896 |
| Biggest Nordic Cities | 0 | - | 4.38 | 60,541 |
| Biggest Coastal City by Country | 0 | - | 4.60 | 27,480 |
| Biggest City by Region #2 | 0 | - | 4.43 | 23,910 |
| Biggest Cities by Latitude | 0 | - | 4.77 | 26,915 |
| U.S. Cities by Hispanic Population | 0 | - | 4.30 | 35,554 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.50 | 22,200 |
| Biggest Cities in New Jersey | 0 | - | 4.11 | 26,093 |
| Biggest Cities in Colorado | 0 | - | 4.04 | 31,062 |
| Biggest Cities in Virginia | 0 | - | 4.21 | 24,135 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 19,723 |
| Biggest Cities in Alaska | 0 | - | 4.27 | 24,794 |
| Biggest Cities in Arizona | 0 | - | 4.29 | 30,147 |
| Biggest Cities in Illinois | 0 | - | 4.33 | 25,735 |
| Biggest Cities in Louisiana | 0 | - | 4.14 | 19,131 |
| Biggest Cities in Massachusetts | 0 | - | 4.38 | 29,175 |
| Biggest Cities in Michigan | 0 | - | 3.97 | 33,286 |
| Biggest Cities in Missouri | 0 | - | 4.22 | 16,610 |
| Biggest Cities in Tennessee | 0 | - | 4.25 | 20,064 |
| Biggest Cities in Indiana | 0 | - | 4.26 | 25,640 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,372,491 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 362,598 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 103,716 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 159,360 |
| Largest Cities in Alexander's Empire | 0 | - | 4.57 | 39,250 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.38 | 39,281 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.27 | 104,228 |
| Biggest Cities in the World - 2100 | 0 | - | 4.25 | 87,397 |
| Flags to Largest Cities | 0 | - | 4.54 | 35,323 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,168 |
| Cities on Interstate 90 on a Map | 0 | - | 4.44 | 30,575 |
| Biggest Cities in Turkey on a Map | 0 | - | 4.23 | 18,700 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.42 | 103,304 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.41 | 87,784 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,317 |
| Biggest World Cities A-Z | 0 | - | 4.55 | 212,730 |
| Biggest Cities Starting With B | 0 | - | 4.36 | 155,537 |
| Biggest Cities Starting With C | 0 | - | 4.09 | 100,859 |
| Biggest Cities Starting With K | 0 | - | 4.30 | 82,976 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 120,664 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 122,042 |
| Word Scramble - U.S. States | 0 | - | 4.96 | 478,551 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 156,482 |
| Countries with Megacities | 0 | - | 4.99 | 215,540 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 185,034 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 105,342 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 124,047 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 72,178 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 267,362 |
| Largest World Cities With Four Letters | 0 | - | 4.35 | 44,348 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.78 | 66,895 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 121,768 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 81,067 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 255,909 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 115,042 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 107,162 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 87,272 |
| Countries by Population Range - Tile Select | 0 | - | 4.85 | 54,389 |
| Jewish Cities Quiz | 0 | - | 4.32 | 60,477 |
| Biggest Cities by Trait #2 | 0 | - | 4.40 | 14,756 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.34 | 95,744 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.14 | 101,376 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.15 | 75,383 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 70,734 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.25 | 70,039 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.31 | 71,347 |
| US States and State Capitals Quiz | 0 | - | 4.99 | 138,763 |
