| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 141,542 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 70,254 |
| 500 Biggest US Cities | 0 | - | 4.88 | 99,640 |
| Biggest Cities in the World | 0 | - | 4.90 | 695,180 |
| Biggest Cities in Asia | 0 | - | 4.94 | 97,038 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.91 | 44,009 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 93,006 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 42,445 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.91 | 29,752 |
| Biggest City by Time Zone | 0 | - | 4.84 | 55,241 |
| Biggest City in Every Country | 0 | - | 4.98 | 80,166 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 61,829 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 172,159 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 93,219 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 98,137 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 65,962 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 201,812 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.84 | 72,551 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 121,624 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 375,235 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.50 | 40,964 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.95 | 66,169 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 42,742 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 307,282 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.89 | 98,941 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 60,316 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 46,715 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 56,027 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 108,173 |
| Biggest Cities in the United States | 0 | - | 4.93 | 841,983 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 336,878 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 109,634 |
| Biggest Cities by Language | 0 | - | 4.95 | 215,118 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 65,139 |
| Most Populous World Capitals | 0 | - | 4.93 | 149,607 |
| Biggest European Cities by Century | 0 | - | 4.98 | 119,756 |
| Megacities on a World Map | 0 | - | 4.98 | 222,335 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.84 | 44,342 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 103,405 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 518,940 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 60,393 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 64,094 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.70 | 56,622 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.70 | 74,908 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.82 | 53,161 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 85,590 |
| Biggest City in Each U.S. State | 0 | - | 4.83 | 152,288 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.88 | 51,260 |
| Biggest Cities in France - Extreme | 0 | - | 4.89 | 44,739 |
| Biggest Cities in Germany | 0 | - | 4.95 | 265,893 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 155,794 |
| Biggest Cities in Europe | 0 | - | 4.76 | 469,933 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.38 | 37,602 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.23 | 93,446 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 52,829 |
| Megacities on an Empty Map | 0 | - | 4.95 | 88,243 |
| Biggest Cities in Canada | 0 | - | 4.66 | 121,599 |
| Biggest Cities in Mexico | 0 | - | 4.50 | 34,582 |
| Biggest Cities in Sweden | 0 | - | 4.84 | 37,603 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 77,899 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 64,142 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 68,275 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.50 | 62,279 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 40,612 |
| Biggest "Saint" Cities - United States | 0 | - | 4.47 | 34,209 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.42 | 36,995 |
| Cities of China (With Some Help) | 0 | - | 4.87 | 28,472 |
| Biggest English Cities by Century | 0 | - | 4.90 | 100,092 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.78 | 69,236 |
| Biggest Mediterranean Cities | 0 | - | 4.57 | 87,058 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.63 | 37,252 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.46 | 28,730 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.45 | 60,762 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 98,075 |
| Biggest Cities by Trait #1 | 0 | - | 4.45 | 43,228 |
| Biggest City by Region | 0 | - | 4.50 | 33,891 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 53,731 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,526 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 77,377 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 47,235 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 48,852 |
| Biggest European Cities by Letter | 0 | - | 4.66 | 119,805 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.65 | 63,137 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.97 | 78,499 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 33,335 |
| Saint Lucia Country Quiz | 0 | - | 4.66 | 16,453 |
| Biggest Cities in North Carolina | 0 | - | 4.66 | 32,233 |
| Biggest English-Speaking Cities | 0 | - | 4.42 | 136,742 |
| Biggest City by Island | 0 | - | 4.57 | 45,959 |
| Biggest Cities in History | 0 | - | 4.50 | 81,275 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 68,272 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.50 | 40,371 |
| Biggest World Cities in 1850 | 0 | - | 4.63 | 64,865 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 113,268 |
| Biggest Cities Starting With D | 0 | - | 4.49 | 107,552 |
| Biggest Cities Starting With H | 0 | - | 4.55 | 98,533 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 111,430 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 129,861 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 115,579 |
| Largest World Cities With Four Letters | 0 | - | 4.41 | 43,414 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.58 | 36,676 |
| Biggest Cities in Japan | 0 | - | 4.65 | 76,103 |
| Biggest Cities in Russia | 0 | - | 4.49 | 77,278 |
| Biggest Cities in France | 0 | - | 4.76 | 201,395 |
| Biggest Cities in Spain | 0 | - | 4.55 | 155,137 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 50,769 |
| Biggest Cities in Poland | 0 | - | 4.57 | 48,613 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.41 | 13,239 |
| Biggest Cities in the UK | 0 | - | 4.46 | 94,393 |
| Biggest Cities in China | 0 | - | 4.55 | 140,296 |
| Cities of Ireland | 0 | - | 4.43 | 40,050 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 43,867 |
| Biggest Cities in India | 0 | - | 4.71 | 62,869 |
| Biggest Cities in Italy | 0 | - | 4.66 | 219,441 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 138,626 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.95 | 110,689 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.79 | 100,099 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 70,460 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 39,107 |
| Biggest Nordic Cities | 0 | - | 4.38 | 59,806 |
| Biggest Coastal City by Country | 0 | - | 4.60 | 27,086 |
| Five Biggest Cities by Country | 0 | - | 4.66 | 153,862 |
| Biggest City by Region #2 | 0 | - | 4.46 | 23,273 |
| Biggest Cities by Latitude | 0 | - | 4.76 | 26,344 |
| U.S. Cities by Hispanic Population | 0 | - | 4.27 | 24,649 |
| Northernmost Major City by Country | 0 | - | 4.56 | 31,066 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.78 | 42,578 |
| Flags to Largest Cities | 0 | - | 4.54 | 32,528 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.48 | 20,957 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.75 | 65,691 |
| All Cities in China with Population of 1 Million | 0 | - | 4.79 | 39,093 |
| All Cities in India with Population of 1 Million | 0 | - | 4.79 | 41,404 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 22,895 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 30,026 |
| Biggest Cities in California | 0 | - | 4.35 | 131,165 |
| Biggest Cities in Florida | 0 | - | 4.20 | 67,748 |
| Biggest Cities in New York State | 0 | - | 4.29 | 56,142 |
| Biggest Cities in Pennsylvania | 0 | - | 4.14 | 42,928 |
| Biggest Cities in Ohio | 0 | - | 4.37 | 45,980 |
| Biggest Cities in Texas | 0 | - | 4.26 | 111,942 |
| Biggest Cities in Wisconsin | 0 | - | 4.45 | 23,540 |
| Biggest World Cities A-Z | 0 | - | 4.57 | 204,435 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,320,594 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 351,496 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 127,652 |
| Countries with Megacities | 0 | - | 4.99 | 199,868 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 173,453 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,022 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 97,035 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 64,993 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 250,661 |
| Largest Cities in Alexander's Empire | 0 | - | 4.56 | 38,713 |
| Biggest Cities in the World - 2100 | 0 | - | 4.29 | 82,209 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 24,566 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 23,740 |
| Biggest Urban Areas in the UK | 0 | - | 4.40 | 168,467 |
| Biggest Cities in Portugal | 0 | - | 4.42 | 18,977 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,897 |
| Biggest Cities Starting With B | 0 | - | 4.36 | 149,425 |
| Biggest Cities Starting With C | 0 | - | 4.07 | 97,605 |
| Biggest Cities Starting With K | 0 | - | 4.30 | 79,341 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 115,682 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 117,091 |
| Word Scramble - U.S. States | 0 | - | 4.96 | 462,030 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.79 | 65,332 |
| Biggest U.S. Cities A-Z | 0 | - | 4.71 | 132,316 |
| Countries Closest to Alaska | 0 | - | 4.92 | 99,840 |
| Countries Closest to Maine | 0 | - | 4.85 | 59,518 |
| Great Plains States and Provinces on a Map | 0 | - | 4.94 | 38,654 |
| Rivers of the United States | 0 | - | 4.92 | 57,551 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 117,578 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,809 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 246,873 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 109,852 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 103,881 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 71,410 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 50,963 |
| Jewish Cities Quiz | 0 | - | 4.31 | 59,405 |
| Biggest Cities by Trait #2 | 0 | - | 4.38 | 14,268 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.40 | 88,640 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.39 | 74,672 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.32 | 82,915 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.08 | 88,717 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.15 | 70,551 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.22 | 66,090 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.23 | 60,812 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.27 | 68,143 |
| Biggest Cities in New Jersey | 0 | - | 4.10 | 25,142 |
| Biggest Cities in Colorado | 0 | - | 4.04 | 30,110 |
| Biggest Cities in Virginia | 0 | - | 4.21 | 23,109 |
| Biggest Cities in Oregon | 0 | - | 4.10 | 18,902 |
| Biggest Cities in Alaska | 0 | - | 4.27 | 23,752 |
| Biggest Cities in Arizona | 0 | - | 4.28 | 28,759 |
| Biggest Cities in Illinois | 0 | - | 4.33 | 24,702 |
| Biggest Cities in Louisiana | 0 | - | 4.12 | 18,390 |
| Biggest Cities in Massachusetts | 0 | - | 4.38 | 27,883 |
| Biggest Cities in Michigan | 0 | - | 3.97 | 32,437 |
| Biggest Cities in Missouri | 0 | - | 4.21 | 15,946 |
| Biggest Cities in Tennessee | 0 | - | 4.24 | 19,264 |
| Biggest Cities in Indiana | 0 | - | 4.27 | 22,599 |
