| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,170 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,330 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,704 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,694 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 345,242 |
| Biggest Cities in the World | 0 | - | 4.91 | 797,868 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,829 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,971 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,897 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,841 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 46,001 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,544 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,517 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,149 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,673 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 417,048 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,176 |
| Biggest Cities in the United States | 0 | - | 4.94 | 977,260 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,898 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,781 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,340 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 224,717 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,174 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 133,476 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,688 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,411 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,181 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,281 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,740 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,162 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,210 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 57,762 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,945 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,138 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,117 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,535 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,143 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,414 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,255 |
| Largest City by Island | 0 | - | 4.87 | 71,796 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,885 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,835 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,379 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,026 |
| Megacities on a World Map | 0 | - | 4.98 | 254,196 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,901 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 577,682 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,300 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,851 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,624 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,471 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,256 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,173 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,242 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,056 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 73,061 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,176 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,054 |
| Biggest Cities in Europe | 0 | - | 4.73 | 546,019 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,281 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,216 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,869 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,491 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,918 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,943 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,798 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,368 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,526 |
| Biggest Cities in California | 0 | - | 4.35 | 139,807 |
| Biggest Cities in Florida | 0 | - | 4.24 | 72,073 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,635 |
| Biggest Cities in Pennsylvania | 0 | - | 4.12 | 45,385 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,234 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,745 |
| Biggest Cities in Texas | 0 | - | 4.29 | 119,298 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,170 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,795 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,516 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,152 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,417 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,447 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,277 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 65,659 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,723 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,497 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,070 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,605 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,954 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,460 |
| Biggest City by Region | 0 | - | 4.50 | 36,179 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,108 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,295 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,972 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,173 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,392 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,341 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,220 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,396 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,873 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 41,469 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.30 | 116,719 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,938 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 37,053 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 176,264 |
| Biggest Cities in Japan | 0 | - | 4.69 | 83,016 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,368 |
| Biggest Cities in France | 0 | - | 4.70 | 223,847 |
| Biggest Cities in Spain | 0 | - | 4.63 | 171,030 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,953 |
| Biggest Cities in Poland | 0 | - | 4.63 | 53,844 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,168 |
| Biggest Cities in China | 0 | - | 4.53 | 158,433 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,783 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,188 |
| Biggest Cities in India | 0 | - | 4.63 | 67,715 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,948 |
| Biggest Cities in New Jersey | 0 | - | 4.12 | 27,267 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,150 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,727 |
| Biggest Cities in Alaska | 0 | - | 4.29 | 25,871 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,613 |
| Biggest Cities in Illinois | 0 | - | 4.36 | 26,909 |
| Biggest Cities in Louisiana | 0 | - | 4.17 | 19,968 |
| Biggest Cities in Massachusetts | 0 | - | 4.39 | 30,566 |
| Biggest Cities in Michigan | 0 | - | 3.98 | 34,169 |
| Biggest Cities in Missouri | 0 | - | 4.25 | 17,409 |
| Biggest Cities in Tennessee | 0 | - | 4.26 | 20,880 |
| Biggest Cities in Indiana | 0 | - | 4.24 | 27,011 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 152,501 |
| Biggest Cities in History | 0 | - | 4.52 | 90,090 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 77,023 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,382 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,814 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.41 | 23,631 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,435 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 53,084 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,295 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,247 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,561 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,330 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,647 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,270 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,010 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,694,171 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,720 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,710 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,028 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,582 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,048 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,496 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,794 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,544 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 39,944 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,577 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,332 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,583 |
| The Most Populous U.S. City by Category | 0 | - | 4.37 | 22,371 |
| Cities of Ireland | 0 | - | 4.51 | 50,635 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,182 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,978 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,093 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 222,912 |
| Vietnam War Countries | 0 | - | 4.82 | 94,159 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,925 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,444,582 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,062 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,829 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,050 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.78 | 68,792 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,908 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,825 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,621 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,164 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 20,973 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,918 |
| Biggest Cities in Georgia | 0 | - | 3.96 | 23,886 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,649 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,252 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,044 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,486 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,163 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,629 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,831 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,273 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,645 |
| Countries with Megacities | 0 | - | 4.99 | 262,504 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,616 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,804 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,104 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,343 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,125 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,405 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,465 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,173 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,015 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,804 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 63,043 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,000 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 18,058 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,073 |
