| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 142,644 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 70,387 |
| 500 Biggest US Cities | 0 | - | 4.88 | 99,863 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.91 | 29,884 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.82 | 53,295 |
| Biggest Cities in the World | 0 | - | 4.90 | 696,220 |
| Biggest Cities in Asia | 0 | - | 4.94 | 97,165 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.91 | 44,090 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 42,549 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 93,097 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.50 | 62,415 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 40,657 |
| Biggest "Saint" Cities - United States | 0 | - | 4.47 | 34,240 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.42 | 37,104 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.76 | 39,079 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 375,624 |
| Biggest Cities in the United States | 0 | - | 4.93 | 843,007 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 337,108 |
| Biggest City by Time Zone | 0 | - | 4.84 | 55,342 |
| Biggest City in Every Country | 0 | - | 4.98 | 80,293 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 61,859 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 172,459 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 93,333 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 98,432 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 66,073 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 201,989 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.84 | 72,665 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 121,812 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.50 | 41,082 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.95 | 66,285 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 42,776 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 307,600 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.89 | 99,155 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 60,389 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 46,748 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 56,109 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 108,398 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 94,718 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 109,704 |
| Biggest Cities by Language | 0 | - | 4.95 | 215,559 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 65,175 |
| Most Populous World Capitals | 0 | - | 4.93 | 149,723 |
| Biggest European Cities by Century | 0 | - | 4.98 | 119,839 |
| Megacities on a World Map | 0 | - | 4.98 | 222,706 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.84 | 44,447 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 104,010 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 519,434 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 60,462 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 64,162 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 85,711 |
| Biggest City in Each U.S. State | 0 | - | 4.83 | 152,453 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 155,891 |
| Biggest Cities in Europe | 0 | - | 4.75 | 470,548 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.88 | 51,305 |
| Biggest Cities in France - Extreme | 0 | - | 4.89 | 44,825 |
| Megacities on an Empty Map | 0 | - | 4.95 | 88,302 |
| Biggest Cities in Germany | 0 | - | 4.95 | 266,183 |
| Biggest Cities in Canada | 0 | - | 4.66 | 121,685 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.45 | 60,804 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.38 | 37,643 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.23 | 93,699 |
| Cities on Interstate 90 on a Map | 0 | - | 4.43 | 28,831 |
| Biggest Cities in Sweden | 0 | - | 4.84 | 37,627 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 78,083 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 64,188 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 68,318 |
| Cities of China (With Some Help) | 0 | - | 4.87 | 28,496 |
| Biggest English Cities by Century | 0 | - | 4.90 | 100,157 |
| U.S. Cities by Hispanic Population | 0 | - | 4.27 | 24,662 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.78 | 69,288 |
| Biggest Mediterranean Cities | 0 | - | 4.57 | 87,077 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.63 | 37,308 |
| The Most Populous U.S. City by Category | 0 | - | 4.30 | 20,213 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.46 | 28,760 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 98,106 |
| Biggest Cities by Trait #1 | 0 | - | 4.45 | 43,243 |
| Biggest City by Region | 0 | - | 4.50 | 33,919 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 53,766 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,549 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.70 | 56,654 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.70 | 74,969 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 77,470 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 47,261 |
| Biggest English-Speaking Cities | 0 | - | 4.42 | 136,800 |
| Biggest European Cities by Letter | 0 | - | 4.66 | 119,876 |
| Biggest City by Island | 0 | - | 4.57 | 45,981 |
| Biggest Cities in History | 0 | - | 4.50 | 81,351 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 68,314 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.65 | 63,175 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.97 | 78,549 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.50 | 40,392 |
| Biggest World Cities in 1850 | 0 | - | 4.63 | 64,907 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 32,055 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 33,376 |
| Saint Lucia Country Quiz | 0 | - | 4.66 | 16,463 |
| Biggest Cities in North Carolina | 0 | - | 4.66 | 32,317 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 113,349 |
| Biggest Cities Starting With D | 0 | - | 4.49 | 107,611 |
| Biggest Cities Starting With H | 0 | - | 4.55 | 98,619 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 111,521 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 129,975 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 115,660 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 52,849 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.58 | 36,734 |
| Biggest Cities in Japan | 0 | - | 4.65 | 76,168 |
| Biggest Cities in Russia | 0 | - | 4.49 | 77,320 |
| Biggest Cities in France | 0 | - | 4.76 | 201,618 |
| Biggest Cities in Spain | 0 | - | 4.55 | 155,301 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 50,831 |
| Biggest Cities in Poland | 0 | - | 4.57 | 48,659 |
| Biggest Cities in the UK | 0 | - | 4.46 | 94,508 |
| Biggest Cities in China | 0 | - | 4.57 | 140,477 |
| Cities of Ireland | 0 | - | 4.43 | 40,084 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 43,903 |
| Biggest Cities in India | 0 | - | 4.71 | 62,934 |
| Biggest Cities in Italy | 0 | - | 4.66 | 219,709 |
| US States Quiz | 0 | - | 5.00 | 14,899,789 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 138,738 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 110,795 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 70,485 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 39,126 |
| Biggest Coastal City by Country | 0 | - | 4.60 | 27,091 |
| Biggest City by Region #2 | 0 | - | 4.46 | 23,289 |
| Biggest Cities by Latitude | 0 | - | 4.76 | 26,361 |
| Largest World Cities With Four Letters | 0 | - | 4.41 | 43,427 |
| Northernmost Major City by Country | 0 | - | 4.56 | 31,089 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.95 | 29,845 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.79 | 100,184 |
| Biggest Nordic Cities | 0 | - | 4.38 | 59,820 |
| Five Biggest Cities by Country | 0 | - | 4.66 | 153,992 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.78 | 42,589 |
| Flags to Largest Cities | 0 | - | 4.54 | 32,590 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.48 | 20,992 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 48,881 |
| Biggest Cities in Mexico | 0 | - | 4.50 | 34,637 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.75 | 65,818 |
| All Cities in China with Population of 1 Million | 0 | - | 4.79 | 39,169 |
| All Cities in India with Population of 1 Million | 0 | - | 4.79 | 41,456 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 22,907 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 30,125 |
| Biggest Cities in California | 0 | - | 4.35 | 131,345 |
| Biggest Cities in Florida | 0 | - | 4.20 | 67,879 |
| Biggest Cities in New York State | 0 | - | 4.29 | 56,248 |
| Biggest Cities in Pennsylvania | 0 | - | 4.14 | 43,016 |
| Biggest Cities in Ohio | 0 | - | 4.37 | 46,086 |
| Biggest Cities in Texas | 0 | - | 4.26 | 112,072 |
| Biggest Cities in Wisconsin | 0 | - | 4.45 | 23,610 |
| Biggest World Cities A-Z | 0 | - | 4.57 | 204,674 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,321,786 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 351,969 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 127,828 |
| Countries with Megacities | 0 | - | 4.99 | 200,129 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 173,675 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,129 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 97,204 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 65,112 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 250,967 |
| Largest Cities in Alexander's Empire | 0 | - | 4.56 | 38,723 |
| Biggest Cities in the World - 2100 | 0 | - | 4.29 | 82,358 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 24,577 |
| Largest Nordic Cities on a Map | 0 | - | 4.79 | 23,809 |
| Biggest Urban Areas in the UK | 0 | - | 4.40 | 168,539 |
| Biggest Cities in Portugal | 0 | - | 4.42 | 19,003 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,906 |
| Biggest Cities Starting With B | 0 | - | 4.36 | 149,551 |
| Biggest Cities Starting With C | 0 | - | 4.07 | 97,651 |
| Biggest Cities Starting With K | 0 | - | 4.30 | 79,409 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 115,770 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 117,194 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,540,193 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 62,160 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 125,586 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.96 | 278,855 |
| 10 Longest Rivers in the United States | 0 | - | 4.82 | 35,275 |
| US States with an Empty Map | 0 | - | 5.00 | 559,645 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 72,318 |
| Louisiana Purchase with a Map | 0 | - | 4.95 | 36,921 |
| U.S. States or European Countries by Population | 0 | - | 4.98 | 116,853 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.77 | 19,417 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 117,644 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,915 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 247,041 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 109,944 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 103,939 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 71,560 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 51,018 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.79 | 65,374 |
| Biggest Cities by Trait #2 | 0 | - | 4.38 | 14,276 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.41 | 13,256 |
| U.S. State Capitals Map Quiz | 0 | - | 4.91 | 127,097 |
| Countries Closest to Alaska | 0 | - | 4.92 | 99,923 |
| Countries Closest to Maine | 0 | - | 4.85 | 59,564 |
| Hawaiian Islands Map Quiz | 0 | - | 4.88 | 21,174 |
| Great Plains States and Provinces on a Map | 0 | - | 4.94 | 38,755 |
| Rivers of the United States | 0 | - | 4.92 | 57,631 |
| Name a Valid U.S. State #1 | 0 | - | 4.95 | 186,570 |
| Top 10 Coldest U.S. States | 0 | - | 4.91 | 101,215 |
| Top 10 Hottest U.S. States | 0 | - | 4.83 | 101,737 |
| Top 10 Most Native American U.S. States | 0 | - | 4.84 | 72,054 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 57,337 |
