| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 143,426 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 70,553 |
| 500 Biggest US Cities | 0 | - | 4.88 | 100,219 |
| Biggest Cities in the World | 0 | - | 4.90 | 698,272 |
| Biggest Cities in Asia | 0 | - | 4.94 | 97,392 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.91 | 44,187 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 42,686 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.91 | 30,017 |
| Biggest Cities in North Carolina | 0 | - | 4.66 | 32,391 |
| Biggest City by Time Zone | 0 | - | 4.85 | 55,561 |
| Biggest City in Every Country | 0 | - | 4.98 | 80,795 |
| Five Most Populated Cities by Continent | 0 | - | 4.95 | 173,066 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 93,633 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 98,881 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 66,314 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 202,325 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.84 | 72,878 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 122,046 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 376,428 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.95 | 66,506 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 42,837 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 308,190 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.89 | 99,424 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 60,538 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 46,825 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 56,280 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 108,698 |
| Biggest Cities in the United States | 0 | - | 4.93 | 844,849 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 337,547 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.84 | 44,529 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 104,455 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 520,379 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.70 | 56,719 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.70 | 75,041 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.82 | 53,449 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 109,856 |
| Biggest Cities by Language | 0 | - | 4.95 | 215,820 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 65,233 |
| Most Populous World Capitals | 0 | - | 4.94 | 160,165 |
| Biggest European Cities by Century | 0 | - | 4.98 | 119,979 |
| Megacities on a World Map | 0 | - | 4.98 | 223,017 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 60,594 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 64,297 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 85,976 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 152,696 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.88 | 51,377 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 93,270 |
| Biggest Cities in France - Extreme | 0 | - | 4.90 | 45,029 |
| Biggest Cities in Germany | 0 | - | 4.95 | 266,703 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 30,243 |
| Biggest Cities in Pennsylvania | 0 | - | 4.14 | 43,072 |
| Biggest Cities in Ohio | 0 | - | 4.37 | 46,157 |
| Biggest Cities in Wisconsin | 0 | - | 4.45 | 23,652 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 156,088 |
| Biggest Cities in Europe | 0 | - | 4.75 | 471,717 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 52,887 |
| Megacities on an Empty Map | 0 | - | 4.95 | 88,431 |
| Biggest Cities in Mexico | 0 | - | 4.50 | 34,724 |
| Biggest Cities in Sweden | 0 | - | 4.84 | 37,680 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 78,447 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 64,278 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 68,402 |
| Cities of China (With Some Help) | 0 | - | 4.87 | 28,545 |
| Biggest Cities in Alaska | 0 | - | 4.27 | 23,867 |
| Biggest English Cities by Century | 0 | - | 4.90 | 100,280 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.50 | 62,682 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 40,715 |
| Biggest "Saint" Cities - United States | 0 | - | 4.47 | 34,286 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.45 | 37,246 |
| Biggest Cities in California | 0 | - | 4.35 | 131,520 |
| Biggest Cities in Florida | 0 | - | 4.20 | 67,980 |
| Biggest Cities in New York State | 0 | - | 4.29 | 56,330 |
| Biggest Cities in Texas | 0 | - | 4.26 | 112,206 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 61,919 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.50 | 41,316 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.79 | 69,390 |
| Biggest Mediterranean Cities | 0 | - | 4.57 | 87,134 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.63 | 37,412 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.45 | 60,894 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 48,982 |
| Biggest Cities in New Jersey | 0 | - | 4.10 | 25,273 |
| Biggest Cities in Colorado | 0 | - | 4.04 | 30,233 |
| Biggest Cities in Virginia | 0 | - | 4.21 | 23,226 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 18,992 |
| Biggest Cities in Illinois | 0 | - | 4.33 | 24,892 |
| Biggest Cities in Louisiana | 0 | - | 4.12 | 18,491 |
| Biggest Cities in Massachusetts | 0 | - | 4.38 | 28,025 |
| Biggest Cities in Missouri | 0 | - | 4.21 | 16,027 |
| Biggest Cities in Tennessee | 0 | - | 4.24 | 19,362 |
| Biggest Cities in Indiana | 0 | - | 4.29 | 24,360 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 98,157 |
| Biggest Cities by Trait #1 | 0 | - | 4.45 | 43,281 |
| Biggest City by Region | 0 | - | 4.50 | 33,951 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 53,825 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.97 | 78,670 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,593 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 77,613 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 47,311 |
| Biggest English-Speaking Cities | 0 | - | 4.42 | 136,916 |
| Biggest European Cities by Letter | 0 | - | 4.66 | 120,010 |
| Biggest City by Island | 0 | - | 4.57 | 46,010 |
| Biggest Cities in History | 0 | - | 4.50 | 81,518 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 68,392 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.65 | 63,224 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.38 | 37,715 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.50 | 40,446 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.23 | 94,181 |
| Biggest World Cities in 1850 | 0 | - | 4.63 | 64,970 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 33,456 |
| Biggest Cities in Arizona | 0 | - | 4.28 | 28,946 |
| Biggest Cities in Michigan | 0 | - | 3.97 | 32,578 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 113,603 |
| Biggest Cities Starting With D | 0 | - | 4.49 | 107,973 |
| Biggest Cities Starting With H | 0 | - | 4.57 | 98,885 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 111,761 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 130,405 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 115,886 |
| Largest World Cities With Four Letters | 0 | - | 4.41 | 43,468 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.78 | 42,612 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.58 | 36,877 |
| Biggest Cities in Japan | 0 | - | 4.65 | 76,255 |
| Biggest Cities in Russia | 0 | - | 4.49 | 77,410 |
| Biggest Cities in France | 0 | - | 4.76 | 202,078 |
| Biggest Cities in Spain | 0 | - | 4.55 | 155,602 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 50,926 |
| Biggest Cities in Poland | 0 | - | 4.57 | 48,804 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.41 | 13,279 |
| Biggest Cities in the UK | 0 | - | 4.46 | 94,696 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.75 | 66,083 |
| Biggest Cities in China | 0 | - | 4.57 | 140,803 |
| All Cities in China with Population of 1 Million | 0 | - | 4.79 | 39,276 |
| Cities of Ireland | 0 | - | 4.43 | 40,167 |
| Biggest Cities in Canada | 0 | - | 4.66 | 121,876 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 43,966 |
| Biggest Cities in India | 0 | - | 4.71 | 63,028 |
| All Cities in India with Population of 1 Million | 0 | - | 4.79 | 41,543 |
| Biggest Cities in Italy | 0 | - | 4.66 | 220,129 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 139,128 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 111,127 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 70,538 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 39,154 |
| Biggest Nordic Cities | 0 | - | 4.38 | 59,845 |
| Biggest Coastal City by Country | 0 | - | 4.60 | 27,109 |
| Biggest City by Region #2 | 0 | - | 4.46 | 23,311 |
| Biggest Cities by Latitude | 0 | - | 4.76 | 26,379 |
| U.S. Cities by Hispanic Population | 0 | - | 4.27 | 24,686 |
| Northernmost Major City by Country | 0 | - | 4.56 | 31,124 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.48 | 21,079 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 22,937 |
| Biggest Cities in Georgia | 0 | - | 3.96 | 21,952 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,323,980 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 352,389 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.79 | 100,321 |
| Five Biggest Cities by Country | 0 | - | 4.66 | 154,226 |
| Largest Cities in Alexander's Empire | 0 | - | 4.56 | 38,743 |
| Biggest Cities in the World - 2100 | 0 | - | 4.29 | 82,569 |
| Flags to Largest Cities | 0 | - | 4.54 | 32,711 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 24,605 |
| Largest Nordic Cities on a Map | 0 | - | 4.79 | 23,896 |
| Biggest Urban Areas in the UK | 0 | - | 4.40 | 168,673 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.46 | 28,789 |
| Biggest Cities in Portugal | 0 | - | 4.42 | 19,050 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,927 |
| Biggest World Cities A-Z | 0 | - | 4.57 | 205,052 |
| Biggest Cities Starting With B | 0 | - | 4.36 | 149,855 |
| Biggest Cities Starting With C | 0 | - | 4.07 | 97,821 |
| Biggest Cities Starting With K | 0 | - | 4.30 | 79,728 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 115,977 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 117,417 |
| Word Scramble - U.S. States | 0 | - | 4.96 | 462,974 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 128,221 |
| Countries with Megacities | 0 | - | 4.99 | 200,684 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 174,438 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,356 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 97,534 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 65,356 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 251,628 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.79 | 65,435 |
| Biggest U.S. Cities A-Z | 0 | - | 4.72 | 132,482 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 117,794 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 67,086 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 247,359 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 110,134 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 104,038 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 71,790 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 51,118 |
| Jewish Cities Quiz | 0 | - | 4.31 | 59,466 |
| Biggest Cities by Trait #2 | 0 | - | 4.38 | 14,293 |
| Saint Lucia Country Quiz | 0 | - | 4.66 | 16,506 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.40 | 88,978 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.39 | 74,984 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.32 | 83,259 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.08 | 89,063 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 70,844 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.22 | 66,397 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.23 | 60,932 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.27 | 68,259 |
| US States and State Capitals Quiz | 0 | - | 4.99 | 123,172 |
| Which City in Canada? | 0 | - | 4.89 | 45,763 |
| Countries Closest to United States A-Z | 0 | - | 4.84 | 108,284 |
