| Biggest Cities in the U.S. - Extreme | 0 | - | 4.94 | 134,345 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 69,626 |
| 500 Biggest US Cities | 0 | - | 4.87 | 98,465 |
| Biggest Cities in North Carolina | 0 | - | 4.66 | 32,019 |
| Biggest Cities in the World | 0 | - | 4.89 | 688,683 |
| Biggest Cities in Asia | 0 | - | 4.94 | 96,106 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 43,572 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 41,858 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 199,773 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 114,832 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 371,942 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.91 | 29,218 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 304,748 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.89 | 97,780 |
| Biggest Cities in the United States | 0 | - | 4.93 | 823,893 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 334,559 |
| Biggest City by Time Zone | 0 | - | 4.84 | 54,577 |
| Biggest City in Every Country | 0 | - | 4.97 | 79,107 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 170,299 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 92,321 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 96,602 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 65,122 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.86 | 71,683 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.94 | 65,440 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 42,460 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 59,845 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 46,446 |
| Biggest Cities in Washington State | 0 | - | 4.45 | 29,425 |
| Biggest Cities in California | 0 | - | 4.35 | 130,561 |
| Biggest Cities in Florida | 0 | - | 4.20 | 67,445 |
| Biggest Cities in New York State | 0 | - | 4.29 | 55,906 |
| Biggest Cities in Pennsylvania | 0 | - | 4.14 | 42,721 |
| Biggest Cities in Ohio | 0 | - | 4.37 | 45,755 |
| Biggest Cities in Texas | 0 | - | 4.26 | 111,495 |
| Biggest Cities in Wisconsin | 0 | - | 4.45 | 23,413 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.84 | 44,038 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.91 | 92,335 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 514,994 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.81 | 52,507 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 109,146 |
| Biggest Cities by Language | 0 | - | 4.95 | 214,197 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.94 | 64,922 |
| Most Populous World Capitals | 0 | - | 4.92 | 148,738 |
| Biggest European Cities by Century | 0 | - | 4.98 | 118,966 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.88 | 51,004 |
| Megacities on a World Map | 0 | - | 4.98 | 221,020 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 91,379 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 59,968 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 63,568 |
| Biggest Cities in France - Extreme | 0 | - | 4.89 | 43,963 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 84,612 |
| Biggest Cities in Germany | 0 | - | 4.95 | 263,581 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 151,446 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 155,084 |
| Biggest Cities in Europe | 0 | - | 4.76 | 465,869 |
| Megacities on an Empty Map | 0 | - | 4.95 | 87,686 |
| Biggest Cities in Sweden | 0 | - | 4.82 | 37,308 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 76,550 |
| Cities of China (With Some Help) | 0 | - | 4.87 | 28,272 |
| Biggest Cities in New Jersey | 0 | - | 4.10 | 24,972 |
| Biggest Cities in Colorado | 0 | - | 4.04 | 29,948 |
| Biggest Cities in Virginia | 0 | - | 4.23 | 22,976 |
| Biggest Cities in Oregon | 0 | - | 4.10 | 18,768 |
| Biggest Cities in Alaska | 0 | - | 4.27 | 23,607 |
| Biggest Cities in Arizona | 0 | - | 4.28 | 28,540 |
| Biggest Cities in Illinois | 0 | - | 4.33 | 24,491 |
| Biggest Cities in Louisiana | 0 | - | 4.12 | 18,256 |
| Biggest Cities in Massachusetts | 0 | - | 4.38 | 27,657 |
| Biggest Cities in Michigan | 0 | - | 3.97 | 32,285 |
| Biggest Cities in Missouri | 0 | - | 4.21 | 15,856 |
| Biggest Cities in Tennessee | 0 | - | 4.24 | 19,150 |
| Biggest Cities in Indiana | 0 | - | 4.29 | 21,049 |
| Biggest English Cities by Century | 0 | - | 4.90 | 99,685 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 63,844 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 67,954 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.49 | 60,610 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 40,398 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 34,022 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 61,619 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.46 | 37,813 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.79 | 68,902 |
| Biggest Mediterranean Cities | 0 | - | 4.57 | 86,636 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.63 | 36,945 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.67 | 56,376 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.71 | 74,621 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.45 | 60,464 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.48 | 97,580 |
| Biggest Cities by Trait #1 | 0 | - | 4.45 | 43,104 |
| Biggest City by Region | 0 | - | 4.49 | 33,697 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 53,460 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.97 | 78,109 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,400 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 76,814 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 30,402 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 47,064 |
| Biggest English-Speaking Cities | 0 | - | 4.42 | 136,315 |
| Biggest European Cities by Letter | 0 | - | 4.66 | 119,088 |
| Biggest City by Island | 0 | - | 4.57 | 45,803 |
| Biggest Cities in History | 0 | - | 4.50 | 80,384 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 68,019 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.65 | 62,971 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.38 | 37,303 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.49 | 40,185 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.25 | 91,742 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 52,656 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.57 | 36,161 |
| Biggest World Cities in 1850 | 0 | - | 4.58 | 64,646 |
| Biggest Cities in Japan | 0 | - | 4.66 | 75,719 |
| Biggest Cities in Russia | 0 | - | 4.49 | 76,749 |
| Biggest Cities in France | 0 | - | 4.76 | 200,008 |
| Biggest Cities in Spain | 0 | - | 4.50 | 153,816 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 50,308 |
| Biggest Cities in Poland | 0 | - | 4.57 | 48,180 |
| Biggest Cities in the UK | 0 | - | 4.46 | 93,660 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 33,013 |
| Biggest Cities in China | 0 | - | 4.64 | 138,972 |
| Cities of Ireland | 0 | - | 4.43 | 39,782 |
| Biggest Cities in Canada | 0 | - | 4.66 | 120,931 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 43,637 |
| Biggest Cities in India | 0 | - | 4.72 | 62,496 |
| Biggest Cities in Italy | 0 | - | 4.65 | 217,584 |
| Biggest Cities in Georgia | 0 | - | 3.96 | 21,610 |
| Biggest Cities Starting With A | 0 | - | 4.56 | 112,362 |
| Biggest Cities Starting With D | 0 | - | 4.49 | 106,982 |
| Biggest Cities Starting With H | 0 | - | 4.55 | 97,811 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 110,694 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 129,044 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 114,873 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.79 | 42,493 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 48,474 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.76 | 64,738 |
| All Cities in China with Population of 1 Million | 0 | - | 4.79 | 38,741 |
| All Cities in India with Population of 1 Million | 0 | - | 4.79 | 41,069 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.79 | 99,625 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 70,243 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 39,003 |
| Biggest Nordic Cities | 0 | - | 4.38 | 59,694 |
| Biggest Coastal City by Country | 0 | - | 4.59 | 27,038 |
| Five Biggest Cities by Country | 0 | - | 4.67 | 152,672 |
| Biggest City by Region #2 | 0 | - | 4.46 | 23,148 |
| Biggest Cities by Latitude | 0 | - | 4.76 | 26,258 |
| U.S. Cities by Hispanic Population | 0 | - | 4.26 | 24,563 |
| Largest World Cities With Four Letters | 0 | - | 4.41 | 43,276 |
| Northernmost Major City by Country | 0 | - | 4.56 | 30,909 |
| Flags to Largest Cities | 0 | - | 4.54 | 32,072 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.47 | 20,754 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 22,783 |
| Biggest World Cities A-Z | 0 | - | 4.55 | 194,255 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,313,088 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 349,957 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 137,423 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.95 | 109,992 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.79 | 65,067 |
| Largest Cities in Alexander's Empire | 0 | - | 4.56 | 38,637 |
| Biggest Cities in the World - 2100 | 0 | - | 4.29 | 81,373 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 24,470 |
| Largest Nordic Cities on a Map | 0 | - | 4.76 | 23,387 |
| Biggest Urban Areas in the UK | 0 | - | 4.40 | 167,937 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.46 | 28,583 |
| Biggest Cities in Portugal | 0 | - | 4.41 | 18,828 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,829 |
| Biggest Cities Starting With B | 0 | - | 4.35 | 148,226 |
| Biggest Cities Starting With C | 0 | - | 4.07 | 97,082 |
| Biggest Cities Starting With K | 0 | - | 4.30 | 78,873 |
| Biggest Cities Starting With S | 0 | - | 4.39 | 114,817 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 116,401 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 126,501 |
| Countries with Megacities | 0 | - | 4.99 | 197,787 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 172,016 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 98,231 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 95,850 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 64,199 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 248,521 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.41 | 13,148 |
| Biggest Cities in Mexico | 0 | - | 4.54 | 29,340 |
| Saint Lucia Country Quiz | 0 | - | 4.66 | 16,342 |
| Biggest U.S. Cities A-Z | 0 | - | 4.70 | 129,729 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 117,093 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,250 |
| Countries of Europe by Population | 0 | - | 4.98 | 127,380 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 245,311 |
| Most Populous Countries by Year | 0 | - | 4.81 | 93,932 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 109,201 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 100,379 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 70,146 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 78,822 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 96,815 |
| Countries with the Most People Bordering Them | 0 | - | 4.95 | 75,539 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 93,673 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 70,455 |
| Jewish Cities Quiz | 0 | - | 4.31 | 59,296 |
| Biggest Cities Near a Border | 0 | - | 4.20 | 28,555 |
| Biggest Cities by Trait #2 | 0 | - | 4.38 | 14,198 |
| Cities in Squares on a Map - North America | 0 | - | 4.36 | 19,402 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.39 | 87,273 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.39 | 73,435 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.31 | 81,760 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.09 | 87,447 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.18 | 69,425 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.23 | 64,933 |
