| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 90,322 |
| Biggest Cities in Germany | 0 | - | 4.94 | 260,636 |
| Biggest Cities in the World | 0 | - | 4.89 | 677,746 |
| Biggest Cities in Asia | 0 | - | 4.94 | 94,906 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.91 | 42,894 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 41,053 |
| Biggest Cities in Sweden | 0 | - | 4.83 | 36,972 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 74,534 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 197,279 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 108,212 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 366,967 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 301,148 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.89 | 96,003 |
| Biggest Cities in the United States | 0 | - | 4.92 | 807,594 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 320,568 |
| Biggest City by Time Zone | 0 | - | 4.82 | 53,271 |
| Biggest City in Every Country | 0 | - | 4.97 | 77,413 |
| Five Most Populated Cities by Continent | 0 | - | 4.95 | 167,032 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 90,714 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 94,305 |
| Biggest Cities with Exceptions | 0 | - | 4.87 | 53,563 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.85 | 70,039 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.94 | 64,097 |
| Biggest Cities in Deserts | 0 | - | 4.93 | 41,949 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 58,982 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 54,320 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 48,018 |
| Cities of China (With Some Help) | 0 | - | 4.86 | 27,972 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.93 | 130,459 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.82 | 43,645 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 90,652 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 508,336 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 68,798 |
| 500 Biggest US Cities | 0 | - | 4.85 | 96,127 |
| Biggest Cities in Mexico | 0 | - | 4.54 | 28,719 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 108,094 |
| Biggest Cities by Language | 0 | - | 4.95 | 212,324 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 64,442 |
| Most Populous World Capitals | 0 | - | 4.92 | 146,439 |
| Biggest European Cities by Century | 0 | - | 4.97 | 117,612 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 50,514 |
| Megacities on a World Map | 0 | - | 4.98 | 218,987 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 59,357 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 62,668 |
| Biggest Cities in France - Extreme | 0 | - | 4.88 | 42,886 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 82,847 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 149,893 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 153,604 |
| Biggest Cities in Europe | 0 | - | 4.74 | 456,395 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.90 | 28,319 |
| Megacities on an Empty Map | 0 | - | 4.96 | 86,723 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.46 | 59,957 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.70 | 55,973 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.71 | 74,100 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.41 | 12,952 |
| Biggest English Cities by Century | 0 | - | 4.89 | 98,759 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 63,051 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 67,044 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 32,498 |
| Biggest Cities in North Carolina | 0 | - | 4.66 | 31,709 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 52,354 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.79 | 68,294 |
| Biggest Mediterranean Cities | 0 | - | 4.57 | 86,172 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.64 | 36,442 |
| Biggest Cities in Japan | 0 | - | 4.65 | 74,855 |
| Biggest Cities in Russia | 0 | - | 4.49 | 75,873 |
| Biggest Cities in France | 0 | - | 4.76 | 197,220 |
| Biggest Cities in Spain | 0 | - | 4.50 | 152,108 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 49,639 |
| Biggest Cities in Poland | 0 | - | 4.56 | 47,593 |
| Biggest Cities in the UK | 0 | - | 4.45 | 92,481 |
| Biggest Cities in China | 0 | - | 4.64 | 136,636 |
| Cities of Ireland | 0 | - | 4.43 | 39,428 |
| Biggest Cities in Canada | 0 | - | 4.67 | 119,487 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 43,235 |
| Biggest Cities in India | 0 | - | 4.72 | 61,898 |
| Biggest Cities in Italy | 0 | - | 4.65 | 215,233 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.74 | 63,357 |
| All Cities in China with Population of 1 Million | 0 | - | 4.77 | 37,787 |
| All Cities in India with Population of 1 Million | 0 | - | 4.79 | 40,412 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.48 | 97,291 |
| Biggest Cities by Trait #1 | 0 | - | 4.44 | 42,869 |
| Biggest City by Region | 0 | - | 4.48 | 33,197 |
| Most Populous 2nd Cities | 0 | - | 4.72 | 52,974 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.96 | 70,229 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,196 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 67,629 |
| Ten Northernmost Megacities | 0 | - | 4.49 | 46,791 |
| Ten Southernmost Megacities | 0 | - | 4.80 | 45,979 |
| Saint Lucia Country Quiz | 0 | - | 4.66 | 16,129 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 22,657 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 27,738 |
| Biggest Cities in California | 0 | - | 4.35 | 129,702 |
| Biggest Cities in Florida | 0 | - | 4.19 | 67,016 |
| Biggest Cities in New York State | 0 | - | 4.29 | 55,525 |
| Biggest Cities in Pennsylvania | 0 | - | 4.14 | 42,494 |
| Biggest Cities in Ohio | 0 | - | 4.36 | 45,480 |
| Biggest Cities in Texas | 0 | - | 4.26 | 110,805 |
| Biggest Cities in Wisconsin | 0 | - | 4.45 | 23,229 |
| Biggest English-Speaking Cities | 0 | - | 4.42 | 135,657 |
| Biggest European Cities by Letter | 0 | - | 4.64 | 118,029 |
| Biggest City by Island | 0 | - | 4.57 | 45,593 |
| Biggest Cities in History | 0 | - | 4.49 | 79,396 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 67,638 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.59 | 62,703 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.43 | 61,237 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.49 | 55,470 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.46 | 37,622 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.50 | 39,844 |
| U.S. States by Second Most Populous City | 0 | - | 4.44 | 40,015 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 33,765 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.57 | 35,435 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.79 | 51,715 |
| Biggest World Cities in 1850 | 0 | - | 4.58 | 64,269 |
| Biggest Urban Areas in the UK | 0 | - | 4.40 | 167,043 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.45 | 28,349 |
| Biggest Cities in Portugal | 0 | - | 4.41 | 18,661 |
| Biggest U.S. Cities A-Z | 0 | - | 4.59 | 121,628 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 110,988 |
| Biggest Cities Starting With D | 0 | - | 4.48 | 106,091 |
| Biggest Cities Starting With H | 0 | - | 4.53 | 96,663 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 109,487 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 127,425 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 113,439 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.79 | 42,357 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.79 | 98,412 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 69,898 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 38,835 |
| Biggest Nordic Cities | 0 | - | 4.37 | 59,511 |
| Biggest Coastal City by Country | 0 | - | 4.59 | 26,958 |
| Five Biggest Cities by Country | 0 | - | 4.66 | 150,970 |
| Biggest City by Region #2 | 0 | - | 4.45 | 22,837 |
| Biggest Cities by Latitude | 0 | - | 4.76 | 26,119 |
| Largest World Cities With Four Letters | 0 | - | 4.41 | 43,042 |
| Northernmost Major City by Country | 0 | - | 4.55 | 30,660 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.45 | 28,569 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.47 | 20,516 |
| Biggest Cities in New Jersey | 0 | - | 4.10 | 24,755 |
| Biggest Cities in Colorado | 0 | - | 4.04 | 29,746 |
| Biggest Cities in Virginia | 0 | - | 4.23 | 22,762 |
| Biggest Cities in Oregon | 0 | - | 4.10 | 18,580 |
| Biggest Cities in Alaska | 0 | - | 4.27 | 23,380 |
| Biggest Cities in Arizona | 0 | - | 4.28 | 28,231 |
| Biggest Cities in Illinois | 0 | - | 4.33 | 24,247 |
| Biggest Cities in Louisiana | 0 | - | 4.10 | 18,083 |
| Biggest Cities in Massachusetts | 0 | - | 4.38 | 27,359 |
| Biggest Cities in Michigan | 0 | - | 3.97 | 32,125 |
| Biggest Cities in Missouri | 0 | - | 4.20 | 15,729 |
| Biggest Cities in Tennessee | 0 | - | 4.24 | 19,004 |
| Biggest Cities in Indiana | 0 | - | 4.28 | 19,670 |
| Biggest World Cities A-Z | 0 | - | 4.55 | 192,012 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,301,033 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 347,339 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 136,060 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.95 | 108,738 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.79 | 64,611 |
| Largest Cities in Alexander's Empire | 0 | - | 4.56 | 38,480 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.37 | 36,779 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.24 | 88,947 |
| Biggest Cities in the World - 2100 | 0 | - | 4.29 | 80,101 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 24,314 |
| Largest Nordic Cities on a Map | 0 | - | 4.72 | 22,769 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,742 |
| Biggest Cities Starting With B | 0 | - | 4.35 | 146,487 |
| Biggest Cities Starting With C | 0 | - | 4.07 | 96,079 |
| Biggest Cities Starting With K | 0 | - | 4.29 | 78,149 |
| Biggest Cities Starting With S | 0 | - | 4.39 | 113,724 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 115,297 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 455,628 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 123,974 |
| Countries with Megacities | 0 | - | 4.99 | 194,493 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,229 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 96,742 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 93,532 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,606 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 244,766 |
| Which City in Canada? | 0 | - | 4.89 | 44,878 |
| Countries Closest to United States A-Z | 0 | - | 4.86 | 106,201 |
| South America Flags Map Quiz | 0 | - | 4.95 | 69,253 |
| U.S. State Flags | 0 | - | 4.87 | 133,940 |
| Hawaiian Islands | 0 | - | 4.85 | 38,231 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 57,599 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 116,212 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 65,268 |
| Countries of Europe by Population | 0 | - | 4.98 | 124,369 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 243,249 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 108,149 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,443 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 64,339 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 78,220 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 95,537 |
| Countries with the Most People Bordering Them | 0 | - | 4.95 | 74,371 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 92,513 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 64,380 |
| Jewish Cities Quiz | 0 | - | 4.31 | 59,065 |
| U.S. Cities by Hispanic Population | 0 | - | 4.26 | 24,439 |
| Biggest Cities Near a Border | 0 | - | 4.20 | 27,613 |
| Biggest Cities by Trait #2 | 0 | - | 4.37 | 14,064 |
| Flags to Largest Cities | 0 | - | 4.57 | 30,738 |
| Cities in Squares on a Map - North America | 0 | - | 4.36 | 19,190 |
