| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,408 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 82,278 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,905 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,194 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 346,084 |
| Biggest Cities in the World | 0 | - | 4.91 | 799,601 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,134 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.93 | 50,144 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,077 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,166 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,137 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,888 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,587 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,247 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,089 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,518 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,917 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 418,036 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,474 |
| Biggest Cities in the United States | 0 | - | 4.94 | 979,309 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,376 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,103 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,769 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,393 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,519 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 134,243 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,942 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,626 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,069 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 59,935 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,155 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,662 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,732 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,651 |
| Biggest Cities in California | 0 | - | 4.35 | 139,944 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,393 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,537 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 578,655 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,340 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,805 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,667 |
| Largest City by Island | 0 | - | 4.87 | 71,951 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,059 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,040 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,615 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,228 |
| Megacities on a World Map | 0 | - | 4.98 | 254,862 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,265 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,413 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,024 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,821 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,834 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,681 |
| Biggest Cities in Florida | 0 | - | 4.24 | 72,148 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,704 |
| Biggest Cities in Pennsylvania | 0 | - | 4.13 | 45,418 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,490 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,274 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,673 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,795 |
| Biggest Cities in Texas | 0 | - | 4.29 | 119,379 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,202 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,362 |
| Biggest Cities in Europe | 0 | - | 4.73 | 546,686 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,508 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,232 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,594 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,386 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,940 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,566 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 89,546 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,004 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,858 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,419 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,130 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,857 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,573 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,519 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,323 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 66,419 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,209 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,242 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,282 |
| Biggest Cities in New Jersey | 0 | - | 4.13 | 28,643 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,175 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,766 |
| Biggest Cities in Alaska | 0 | - | 4.29 | 25,905 |
| Biggest Cities in Illinois | 0 | - | 4.36 | 26,949 |
| Biggest Cities in Louisiana | 0 | - | 4.17 | 19,994 |
| Biggest Cities in Massachusetts | 0 | - | 4.39 | 30,615 |
| Biggest Cities in Michigan | 0 | - | 3.98 | 34,197 |
| Biggest Cities in Missouri | 0 | - | 4.25 | 17,432 |
| Biggest Cities in Tennessee | 0 | - | 4.26 | 20,902 |
| Biggest Cities in Indiana | 0 | - | 4.24 | 27,047 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,769 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,631 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,137 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,010 |
| Biggest City by Region | 0 | - | 4.50 | 36,246 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,159 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,346 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,554 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,202 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,363 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,307 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,429 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 160,858 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,698 |
| Biggest Cities in History | 0 | - | 4.52 | 90,213 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 77,699 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,482 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,998 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,436 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.30 | 117,247 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,429 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 44,115 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,131 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,490 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,354 |
| Biggest Cities in Japan | 0 | - | 4.69 | 83,147 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,458 |
| Biggest Cities in France | 0 | - | 4.70 | 224,144 |
| Biggest Cities in Spain | 0 | - | 4.63 | 171,266 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,026 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,946 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,319 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,945 |
| Biggest Cities in China | 0 | - | 4.53 | 158,778 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,926 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,241 |
| Biggest Cities in India | 0 | - | 4.64 | 67,784 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,217 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,417 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,699 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,482 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,055 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,474 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,175 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,857 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 53,167 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,366 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,736 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,815 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,063 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,596 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,075 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,674 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,829 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,558 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,654 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,436 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,602 |
| The Most Populous U.S. City by Category | 0 | - | 4.37 | 22,395 |
| Cities of Ireland | 0 | - | 4.51 | 50,685 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,191 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,137 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,195 |
| Biggest Cities in Georgia | 0 | - | 3.96 | 23,924 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,159 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 55,987 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,446,608 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,556 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,250 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,264 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 75,001 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 39,963 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,965 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,845 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,206 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 21,004 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,936 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,834 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,361 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,157 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,658 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,330 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,691 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,628 |
| Countries with Megacities | 0 | - | 4.99 | 263,871 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,478 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,330 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,752 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,380 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 63,885 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,040 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.41 | 23,645 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,646 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 18,077 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,291 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,946 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,779 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,015 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,962 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,709 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,988 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,448 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,604 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,642 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,526 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,966 |
