| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,948 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,177 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,499 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,382 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 344,473 |
| Biggest Cities in the World | 0 | - | 4.91 | 796,033 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,522 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,847 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,740 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,507 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,903 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,205 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,446 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,109 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,022 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,729 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,421 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 416,169 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,811 |
| Biggest Cities in the United States | 0 | - | 4.93 | 974,776 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,349 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,389 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,770 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 223,905 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,784 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 132,539 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,275 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,120 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,357 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,596 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,709 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,165 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,297 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,714 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,992 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,043 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 576,595 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,997 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,952 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,880 |
| Largest City by Island | 0 | - | 4.87 | 71,599 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,728 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,577 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,177 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,918 |
| Megacities on a World Map | 0 | - | 4.98 | 252,997 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,515 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,161 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,614 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,442 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,053 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,820 |
| Biggest Cities in Pennsylvania | 0 | - | 4.12 | 45,340 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,998 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,210 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,708 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,147 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,624 |
| Biggest Cities in Europe | 0 | - | 4.72 | 545,057 |
| Megacities on an Empty Map | 0 | - | 4.97 | 117,995 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,117 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,480 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,129 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,766 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,367 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,773 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,895 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,763 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,325 |
| Biggest Cities in California | 0 | - | 4.35 | 139,670 |
| Biggest Cities in Florida | 0 | - | 4.24 | 71,998 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,583 |
| Biggest Cities in Texas | 0 | - | 4.29 | 119,190 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,972 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,717 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,455 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,356 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,221 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 60,757 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,099 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,099 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,140 |
| Biggest Cities in New Jersey | 0 | - | 4.12 | 27,242 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,125 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,678 |
| Biggest Cities in Alaska | 0 | - | 4.29 | 25,838 |
| Biggest Cities in Illinois | 0 | - | 4.36 | 26,884 |
| Biggest Cities in Louisiana | 0 | - | 4.17 | 19,960 |
| Biggest Cities in Massachusetts | 0 | - | 4.39 | 30,531 |
| Biggest Cities in Missouri | 0 | - | 4.25 | 17,385 |
| Biggest Cities in Tennessee | 0 | - | 4.26 | 20,857 |
| Biggest Cities in Indiana | 0 | - | 4.27 | 26,976 |
| Biggest Cities in Latin America | 0 | - | 4.47 | 64,648 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,355 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,036 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,903 |
| Biggest City by Region | 0 | - | 4.50 | 36,108 |
| Most Populous 2nd Cities | 0 | - | 4.77 | 57,041 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,218 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,320 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,140 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,314 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,145 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,348 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 151,994 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,515 |
| Biggest Cities in History | 0 | - | 4.52 | 89,967 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 73,784 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,431 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,946 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,338 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.29 | 116,234 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,360 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,800 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,990 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,367 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 176,156 |
| Biggest Cities in Japan | 0 | - | 4.69 | 82,880 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,274 |
| Biggest Cities in France | 0 | - | 4.70 | 223,472 |
| Biggest Cities in Spain | 0 | - | 4.63 | 170,751 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,875 |
| Biggest Cities in Poland | 0 | - | 4.63 | 53,757 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,028 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,803 |
| Biggest Cities in China | 0 | - | 4.52 | 158,124 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,621 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,143 |
| Biggest Cities in India | 0 | - | 4.63 | 67,617 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,624 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,580 |
| Biggest Cities in Michigan | 0 | - | 3.98 | 34,152 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,069 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,419 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,141 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,469 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,056 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,821 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,792 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,990 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,223 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,356 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,608 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 72,990 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,535 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,021 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 166,284 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,747 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,528 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,499 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,212 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,552 |
| The Most Populous U.S. City by Category | 0 | - | 4.37 | 22,343 |
| Cities of Ireland | 0 | - | 4.51 | 50,542 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,154 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,826 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,953 |
| Biggest Cities in Georgia | 0 | - | 3.96 | 23,864 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 222,615 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,859 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,442,404 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,495 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,570 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,802 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.78 | 68,743 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 39,923 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,855 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,810 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,107 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 20,934 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,903 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,442 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,135 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,951 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,306 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,007 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,782 |
| Countries with Megacities | 0 | - | 4.99 | 249,993 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,635 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,856 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,940 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,837 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 51,136 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,975 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.41 | 23,604 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,606 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 18,028 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,082 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,641 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,474 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,930 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,262 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,294 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,597 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,223 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,293 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,463 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,125 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,630 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,911 |
