| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,186 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,645 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,688 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,380 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,783 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,728 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,186 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,529 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,254 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 94,206 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 96,937 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,024 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 35,925 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,863 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,348 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,507 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,406 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,720 |
| Biggest Cities in the United States | 0 | - | 4.93 | 965,744 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,595 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,566 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,543 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,689 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,764 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,808 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,402 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,454 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,491 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 52,988 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,098 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,685 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,613 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,442 |
| Biggest Cities in California | 0 | - | 4.35 | 139,174 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,397 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,189 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 572,869 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,478 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,294 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,759 |
| Largest City by Island | 0 | - | 4.87 | 70,986 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,333 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,455 |
| Biggest European Cities by Century | 0 | - | 4.98 | 141,120 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,629 |
| Megacities on a World Map | 0 | - | 4.98 | 250,703 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 124,112 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,743 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,796 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,779 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,570 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,060 |
| Biggest Cities in Florida | 0 | - | 4.23 | 71,746 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,380 |
| Biggest Cities in Pennsylvania | 0 | - | 4.12 | 45,182 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,068 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,067 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,565 |
| Biggest Cities in Texas | 0 | - | 4.28 | 118,575 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,038 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,906 |
| Biggest Cities in Europe | 0 | - | 4.70 | 541,809 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,417 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,927 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,265 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,563 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,501 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,071 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,174 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,673 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,595 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 40,157 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,735 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,447 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,212 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,084 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,008 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,840 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 31,911 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,905 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,887 |
| All Cities in China with Population of 1 Million | 0 | - | 4.80 | 45,305 |
| Biggest Cities in New Jersey | 0 | - | 4.12 | 27,105 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,006 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,547 |
| Biggest Cities in Alaska | 0 | - | 4.29 | 25,706 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,405 |
| Biggest Cities in Illinois | 0 | - | 4.36 | 26,747 |
| Biggest Cities in Louisiana | 0 | - | 4.17 | 19,883 |
| Biggest Cities in Massachusetts | 0 | - | 4.39 | 30,394 |
| Biggest Cities in Michigan | 0 | - | 3.98 | 34,047 |
| Biggest Cities in Missouri | 0 | - | 4.25 | 17,278 |
| Biggest Cities in Tennessee | 0 | - | 4.26 | 20,753 |
| Biggest Cities in Indiana | 0 | - | 4.27 | 26,827 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,458 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,860 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,889 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,666 |
| Biggest City by Region | 0 | - | 4.50 | 35,981 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,881 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 37,972 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 83,961 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,001 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,210 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,897 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,243 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,313 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,197 |
| Biggest Cities in History | 0 | - | 4.52 | 89,076 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,099 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.61 | 65,298 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,844 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,166 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.29 | 114,910 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,198 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,395 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,748 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,172 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,746 |
| Biggest Cities in Japan | 0 | - | 4.67 | 82,485 |
| Biggest Cities in Russia | 0 | - | 4.49 | 81,998 |
| Biggest Cities in France | 0 | - | 4.69 | 221,909 |
| Biggest Cities in Spain | 0 | - | 4.63 | 169,732 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,618 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,416 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,093 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,523 |
| Biggest Cities in China | 0 | - | 4.53 | 156,882 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,758 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,939 |
| Biggest Cities in India | 0 | - | 4.70 | 67,301 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,336 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,444 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 115,917 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,541 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 121,847 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,088 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 125,940 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,707 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,702 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 38,943 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,333 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,271 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,842 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,437 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,971 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,592 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,658 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,460 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,184 |
| Flags to Largest Cities | 0 | - | 4.55 | 50,742 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,391 |
| Cities of Ireland | 0 | - | 4.51 | 50,309 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,085 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,238 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,348 |
| Biggest Cities in Georgia | 0 | - | 3.96 | 23,742 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 221,271 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,585 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,114 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,389 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,514 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,878 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.78 | 68,514 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 39,840 |
| Biggest Cities Near a Border | 0 | - | 4.21 | 31,738 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,719 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 30,964 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 20,783 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,837 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 161,701 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,550 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,593 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,704 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,390 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,954 |
| Countries with Megacities | 0 | - | 4.99 | 246,397 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,870 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,775 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,323 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,728 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,579 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,868 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.41 | 23,547 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,546 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 17,927 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,735 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,055 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,760 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,848 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,778 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,110 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,797 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,428 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,529 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,102 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,221 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,820 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,335 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,514 |
