| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,098 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,703 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,465 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,234 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,829 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,190 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,441 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,526 |
| Biggest Cities in the World | 0 | - | 4.91 | 805,800 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,823 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,751 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,517 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,061 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,348 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,721 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,935 |
| Biggest Cities in the United States | 0 | - | 4.94 | 987,350 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,107 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,957 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,993 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,818 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,476 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,495 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,535 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,081 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,811 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,269 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,530 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 582,108 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,984 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,638 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,460 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,744 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,230 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,416 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,464 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,285 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,787 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,627 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,694 |
| Largest City by Island | 0 | - | 4.87 | 72,467 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,435 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,715 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,160 |
| Megacities on a World Map | 0 | - | 4.98 | 257,018 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,778 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,705 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,494 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,448 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,611 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,460 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 100,098 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 48,030 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,704 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,008 |
| Biggest Cities in Europe | 0 | - | 4.73 | 549,241 |
| Biggest English Cities by Century | 0 | - | 4.91 | 107,017 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 92,286 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 44,173 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 37,007 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,541 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,240 |
| Biggest Cities in California | 0 | - | 4.35 | 140,412 |
| Biggest Cities in Florida | 0 | - | 4.25 | 72,416 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,920 |
| Biggest Cities in Texas | 0 | - | 4.29 | 119,717 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,146 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,368 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,322 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,988 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 49,069 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,744 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,375 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,905 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,778 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,480 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,549 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,499 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 68,333 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,467 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,847 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,263 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,989 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 127,478 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,585 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,552 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,086 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,596 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,200 |
| Biggest Cities in Michigan | 0 | - | 3.98 | 34,289 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,125 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,657 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,162 |
| Biggest City by Region | 0 | - | 4.50 | 36,394 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,344 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.30 | 118,525 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,309 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,444 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,566 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,621 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,399 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,575 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,741 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,523 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,762 |
| Biggest Cities in France | 0 | - | 4.70 | 225,354 |
| Biggest Cities in Spain | 0 | - | 4.64 | 172,209 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,286 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,295 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,844 |
| Biggest Cities in China | 0 | - | 4.53 | 159,922 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,522 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,466 |
| Biggest Cities in India | 0 | - | 4.64 | 68,063 |
| Biggest Cities in Italy | 0 | - | 4.77 | 242,446 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,887 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,701 |
| Biggest Cities in History | 0 | - | 4.52 | 90,613 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 79,045 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 40,048 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,613 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,926 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,760 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,706 |
| The Most Populous U.S. City by Category | 0 | - | 4.37 | 22,487 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,440 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,586 |
| Cities of Ireland | 0 | - | 4.51 | 50,920 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,265 |
| Biggest Cities in Pennsylvania | 0 | - | 4.13 | 45,544 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,419 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,976 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,291 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,153 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,180 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,975 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,594 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 144,112 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,763 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,620 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,154 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,182 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,140 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,361 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,919 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,917 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,844 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,921 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.41 | 23,716 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,737 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,401 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 21,183 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,609 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,557 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 224,182 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,427 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,565 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,220 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,017 |
| Countries with Megacities | 0 | - | 4.99 | 267,234 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,903 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,168 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,030 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,217 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,281 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,557 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,103 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,121 |
| Saint Lucia Country Quiz | 0 | - | 4.68 | 18,150 |
| Biggest U.S. Cities A-Z | 0 | - | 4.68 | 139,615 |
| Biggest Cities in New Jersey | 0 | - | 4.14 | 29,349 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,300 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,901 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.31 | 40,990 |
| Biggest Cities in Alaska | 0 | - | 4.29 | 26,036 |
| Biggest Cities in Illinois | 0 | - | 4.36 | 27,081 |
| Biggest Cities in Louisiana | 0 | - | 4.17 | 20,077 |
| Biggest Cities in Massachusetts | 0 | - | 4.39 | 30,738 |
| Biggest Cities in Missouri | 0 | - | 4.25 | 17,494 |
| Biggest Cities in Tennessee | 0 | - | 4.26 | 20,991 |
| Biggest Cities in Indiana | 0 | - | 4.24 | 27,198 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,827 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,818 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,513 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,368 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,848 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,852 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,473 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,345 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,180 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,149 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,431 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,691 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,918 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,239 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,922 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,374 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,700 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,773 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,906 |
