| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 90,516 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 197,682 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 108,478 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 301,870 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.89 | 96,388 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.93 | 130,879 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.90 | 91,003 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 68,989 |
| 500 Biggest US Cities | 0 | - | 4.85 | 96,583 |
| Biggest Cities in the World | 0 | - | 4.89 | 680,018 |
| Biggest Cities in Asia | 0 | - | 4.94 | 95,144 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.91 | 43,017 |
| Biggest Cities in France - Extreme | 0 | - | 4.88 | 43,089 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 41,218 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.90 | 28,480 |
| Biggest City by Time Zone | 0 | - | 4.84 | 53,628 |
| Biggest City in Every Country | 0 | - | 4.97 | 77,824 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.43 | 61,320 |
| Five Most Populated Cities by Continent | 0 | - | 4.95 | 167,779 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 91,059 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 94,811 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 63,645 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.85 | 70,440 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 367,922 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.46 | 37,661 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.94 | 64,416 |
| Biggest Cities in Deserts | 0 | - | 4.93 | 42,073 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 59,159 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 46,047 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.96 | 54,541 |
| Biggest Cities in the United States | 0 | - | 4.92 | 809,654 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 321,158 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 108,267 |
| Biggest Cities by Language | 0 | - | 4.95 | 212,605 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 64,547 |
| Most Populous World Capitals | 0 | - | 4.92 | 146,890 |
| Biggest European Cities by Century | 0 | - | 4.97 | 117,835 |
| Megacities on a World Map | 0 | - | 4.98 | 219,303 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.82 | 43,709 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 509,539 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 59,485 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 62,839 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.70 | 56,045 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.71 | 74,191 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 83,232 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 150,230 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 50,612 |
| Biggest Cities in Germany | 0 | - | 4.95 | 261,180 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 153,988 |
| Biggest Cities in Europe | 0 | - | 4.75 | 459,125 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.37 | 36,885 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 52,408 |
| Megacities on an Empty Map | 0 | - | 4.96 | 86,928 |
| Biggest Cities in Canada | 0 | - | 4.67 | 119,703 |
| Biggest Cities in Sweden | 0 | - | 4.83 | 37,057 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 74,908 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 63,294 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 67,356 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.49 | 55,581 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 40,090 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 33,807 |
| Cities of China (With Some Help) | 0 | - | 4.86 | 28,024 |
| Biggest English Cities by Century | 0 | - | 4.89 | 99,086 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.79 | 68,413 |
| Biggest Mediterranean Cities | 0 | - | 4.57 | 86,315 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.57 | 35,586 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.64 | 36,543 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.45 | 28,393 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.44 | 60,056 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.48 | 97,347 |
| Biggest Cities by Trait #1 | 0 | - | 4.44 | 42,912 |
| Biggest City by Region | 0 | - | 4.49 | 33,465 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 53,108 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,245 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 72,598 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 46,850 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 48,101 |
| Biggest Cities in Mexico | 0 | - | 4.54 | 28,864 |
| Biggest European Cities by Letter | 0 | - | 4.65 | 118,170 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.64 | 62,756 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.96 | 70,341 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.45 | 28,607 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.80 | 51,860 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.47 | 20,557 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 32,599 |
| Saint Lucia Country Quiz | 0 | - | 4.66 | 16,164 |
| Biggest Cities in North Carolina | 0 | - | 4.66 | 31,759 |
| Great Plains States and Provinces on a Map | 0 | - | 4.94 | 37,324 |
| Rivers of the United States | 0 | - | 4.93 | 49,141 |
| Biggest English-Speaking Cities | 0 | - | 4.42 | 135,777 |
| Biggest City by Island | 0 | - | 4.57 | 45,629 |
| Biggest Cities in History | 0 | - | 4.49 | 79,592 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 67,727 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.50 | 39,923 |
| Largest Nordic Cities on a Map | 0 | - | 4.73 | 22,901 |
| Biggest World Cities in 1850 | 0 | - | 4.58 | 64,337 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 111,283 |
| Biggest Cities Starting With D | 0 | - | 4.48 | 106,317 |
| Biggest Cities Starting With H | 0 | - | 4.53 | 96,908 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 109,752 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 127,751 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 113,958 |
| Hawaiian Islands | 0 | - | 4.85 | 38,302 |
| Largest World Cities With Four Letters | 0 | - | 4.41 | 43,077 |
| Biggest Cities in Japan | 0 | - | 4.66 | 74,966 |
| Biggest Cities in Russia | 0 | - | 4.49 | 75,997 |
| Biggest Cities in France | 0 | - | 4.76 | 197,904 |
| Biggest Cities in Spain | 0 | - | 4.50 | 152,432 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 49,766 |
| Biggest Cities in Poland | 0 | - | 4.56 | 47,731 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.41 | 12,998 |
| Biggest Cities in the UK | 0 | - | 4.45 | 92,715 |
| Biggest Cities in China | 0 | - | 4.64 | 137,226 |
| Cities of Ireland | 0 | - | 4.43 | 39,485 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 43,314 |
| Biggest Cities in India | 0 | - | 4.72 | 62,033 |
| Biggest Cities in Italy | 0 | - | 4.66 | 215,656 |
| US States and State Capitals Quiz | 0 | - | 4.99 | 117,127 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 136,318 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.95 | 108,957 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.79 | 98,589 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 69,963 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 38,866 |
| Biggest Nordic Cities | 0 | - | 4.37 | 59,548 |
| Biggest Coastal City by Country | 0 | - | 4.59 | 26,977 |
| Five Biggest Cities by Country | 0 | - | 4.66 | 151,260 |
| Biggest City by Region #2 | 0 | - | 4.45 | 23,014 |
| Biggest Cities by Latitude | 0 | - | 4.76 | 26,155 |
| U.S. Cities by Hispanic Population | 0 | - | 4.26 | 24,465 |
| Northernmost Major City by Country | 0 | - | 4.55 | 30,705 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.79 | 42,387 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.76 | 63,638 |
| All Cities in China with Population of 1 Million | 0 | - | 4.77 | 37,921 |
| All Cities in India with Population of 1 Million | 0 | - | 4.79 | 40,548 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 22,669 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 27,778 |
| Biggest Cities in California | 0 | - | 4.35 | 129,840 |
| Biggest Cities in Florida | 0 | - | 4.19 | 67,096 |
| Biggest Cities in New York State | 0 | - | 4.29 | 55,578 |
| Biggest Cities in Pennsylvania | 0 | - | 4.14 | 42,526 |
| Biggest Cities in Ohio | 0 | - | 4.36 | 45,520 |
| Biggest Cities in Texas | 0 | - | 4.26 | 110,920 |
| Biggest Cities in Wisconsin | 0 | - | 4.45 | 23,250 |
| Biggest World Cities A-Z | 0 | - | 4.55 | 192,512 |
| Random U.S. State Capitals on a Map | 0 | - | 4.94 | 81,410 |
| Washington Counties | 0 | - | 4.92 | 19,980 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,303,566 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 347,784 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 124,375 |
| Countries with Megacities | 0 | - | 4.99 | 195,061 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,718 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 97,000 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 93,876 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,846 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 245,467 |
| Largest Cities in Alexander's Empire | 0 | - | 4.56 | 38,522 |
| Biggest Cities in the World - 2100 | 0 | - | 4.29 | 80,343 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 24,335 |
| Biggest Urban Areas in the UK | 0 | - | 4.40 | 167,209 |
| Biggest Cities in Portugal | 0 | - | 4.41 | 18,690 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,753 |
| Biggest Cities Starting With B | 0 | - | 4.35 | 147,109 |
| Biggest Cities Starting With C | 0 | - | 4.07 | 96,285 |
| Biggest Cities Starting With K | 0 | - | 4.29 | 78,328 |
| Biggest Cities Starting With S | 0 | - | 4.39 | 113,977 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 115,528 |
| US States by Borders in 30 Seconds | 0 | - | 4.76 | 2,366,859 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 456,429 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.80 | 64,704 |
| Biggest U.S. Cities A-Z | 0 | - | 4.59 | 121,737 |
| Countries Closest to Alaska | 0 | - | 4.92 | 98,332 |
| Countries Closest to Maine | 0 | - | 4.84 | 58,433 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 116,423 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 65,470 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 243,674 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 108,324 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,535 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 64,510 |
| Jewish Cities Quiz | 0 | - | 4.31 | 59,115 |
| Biggest Cities by Trait #2 | 0 | - | 4.37 | 14,090 |
| Flags to Largest Cities | 0 | - | 4.57 | 30,881 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.36 | 82,920 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.36 | 69,399 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.28 | 77,719 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.10 | 83,366 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.15 | 65,802 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.23 | 61,556 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.22 | 59,813 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.27 | 67,223 |
| Biggest Cities in New Jersey | 0 | - | 4.10 | 24,784 |
| Biggest Cities in Colorado | 0 | - | 4.04 | 29,781 |
| Biggest Cities in Virginia | 0 | - | 4.23 | 22,792 |
| Biggest Cities in Oregon | 0 | - | 4.10 | 18,608 |
| Biggest Cities in Alaska | 0 | - | 4.27 | 23,411 |
| Biggest Cities in Arizona | 0 | - | 4.28 | 28,284 |
| Biggest Cities in Illinois | 0 | - | 4.33 | 24,286 |
| Biggest Cities in Louisiana | 0 | - | 4.12 | 18,109 |
| Biggest Cities in Massachusetts | 0 | - | 4.38 | 27,410 |
| Biggest Cities in Michigan | 0 | - | 3.97 | 32,143 |
| Biggest Cities in Missouri | 0 | - | 4.20 | 15,749 |
