| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 155,290 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 76,805 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.94 | 37,892 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.89 | 111,540 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 332,722 |
| Biggest Cities in the World | 0 | - | 4.91 | 767,365 |
| Biggest Cities in Asia | 0 | - | 4.94 | 106,121 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 48,310 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.94 | 48,424 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 89,775 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 92,846 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 45,801 |
| Biggest Cities in Washington State | 0 | - | 4.42 | 35,223 |
| Biggest Cities in North Carolina | 0 | - | 4.68 | 34,314 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 216,519 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 131,504 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 404,990 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 110,360 |
| Biggest Cities in the United States | 0 | - | 4.94 | 936,156 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 357,528 |
| Biggest City by Time Zone | 0 | - | 4.86 | 63,604 |
| Biggest City in Every Country | 0 | - | 4.98 | 93,405 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 194,429 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 105,018 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 114,749 |
| Biggest Cities with Exceptions | 0 | - | 4.88 | 75,361 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.86 | 80,964 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 75,196 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 46,378 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 66,947 |
| Ten Southernmost Megacities | 0 | - | 4.82 | 49,753 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 64,080 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 123,626 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 43,325 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 113,367 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 560,306 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.85 | 59,592 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.88 | 116,401 |
| Biggest Cities by Language | 0 | - | 4.95 | 226,881 |
| Largest City by Island | 0 | - | 4.89 | 68,932 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.93 | 68,757 |
| Most Populous World Capitals | 0 | - | 4.94 | 171,962 |
| Biggest European Cities by Century | 0 | - | 4.98 | 126,620 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.88 | 54,645 |
| Megacities on a World Map | 0 | - | 4.98 | 236,469 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 99,291 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 65,309 |
| All 3M Cities on the World Map | 0 | - | 4.94 | 71,445 |
| Biggest Cities in France - Extreme | 0 | - | 4.89 | 53,619 |
| Largest Nordic Cities on a Map | 0 | - | 4.83 | 35,409 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 103,331 |
| Biggest Cities in Germany | 0 | - | 4.95 | 285,026 |
| Biggest Cities in Pennsylvania | 0 | - | 4.12 | 44,703 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 163,532 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,081 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 24,751 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 164,187 |
| Biggest Cities in Europe | 0 | - | 4.74 | 529,346 |
| Megacities on an Empty Map | 0 | - | 4.96 | 94,842 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,200 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 30,642 |
| Biggest Cities in Massachusetts | 0 | - | 4.38 | 29,856 |
| Biggest English Cities by Century | 0 | - | 4.90 | 104,514 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 67,485 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 71,923 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 82,135 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,036 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,067 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 39,659 |
| Biggest Cities in California | 0 | - | 4.34 | 137,484 |
| Biggest Cities in Florida | 0 | - | 4.22 | 70,860 |
| Biggest Cities in New York State | 0 | - | 4.32 | 58,666 |
| Biggest Cities in Texas | 0 | - | 4.27 | 117,416 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 71,924 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 47,543 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 50,390 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.78 | 72,182 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 90,099 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.57 | 40,284 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.70 | 59,177 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,019 |
| All Cities in China with Population of 1 Million | 0 | - | 4.78 | 43,891 |
| Biggest Cities in New Jersey | 0 | - | 4.12 | 26,648 |
| Biggest Cities in Colorado | 0 | - | 4.04 | 31,607 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 24,654 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,161 |
| Biggest Cities in Alaska | 0 | - | 4.28 | 25,308 |
| Biggest Cities in Illinois | 0 | - | 4.35 | 26,333 |
| Biggest Cities in Louisiana | 0 | - | 4.14 | 19,525 |
| Biggest Cities in Missouri | 0 | - | 4.23 | 17,003 |
| Biggest Cities in Tennessee | 0 | - | 4.26 | 20,490 |
| Biggest Cities in Indiana | 0 | - | 4.27 | 26,317 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.47 | 63,675 |
| Second Biggest Cities by Country | 0 | - | 4.42 | 56,949 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,060 |
| Biggest Cities by Trait #1 | 0 | - | 4.44 | 44,590 |
| Biggest City by Region | 0 | - | 4.50 | 35,441 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,280 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 37,014 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 82,781 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,566 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 51,846 |
| Two Largest Cities by First Two Letters | 0 | - | 4.55 | 81,948 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 48,805 |
| Biggest English-Speaking Cities | 0 | - | 4.43 | 141,733 |
| Biggest European Cities by Letter | 0 | - | 4.63 | 124,662 |
| Biggest Cities in History | 0 | - | 4.52 | 87,522 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 71,347 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 64,877 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,507 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.55 | 42,567 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.27 | 110,453 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 62,657 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.58 | 41,961 |
| Biggest World Cities in 1850 | 0 | - | 4.62 | 67,447 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 31,342 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 174,137 |
| Biggest Cities in Japan | 0 | - | 4.65 | 81,270 |
| Biggest Cities in Russia | 0 | - | 4.48 | 80,961 |
| Biggest Cities in France | 0 | - | 4.73 | 217,447 |
| Biggest Cities in Spain | 0 | - | 4.63 | 166,377 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 54,664 |
| Biggest Cities in Poland | 0 | - | 4.58 | 52,404 |
| Biggest Cities in the UK | 0 | - | 4.47 | 101,819 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 36,619 |
| Biggest Cities in China | 0 | - | 4.52 | 153,027 |
| Cities of Ireland | 0 | - | 4.50 | 49,395 |
| Biggest Cities in Canada | 0 | - | 4.56 | 129,613 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,268 |
| Biggest Cities in India | 0 | - | 4.70 | 66,308 |
| Biggest Cities in Italy | 0 | - | 4.75 | 235,007 |
| Biggest Cities in Arizona | 0 | - | 4.29 | 30,836 |
| Biggest Cities in Michigan | 0 | - | 3.98 | 33,701 |
| Biggest Cities Starting With A | 0 | - | 4.61 | 121,282 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 113,806 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 106,171 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 119,485 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 139,639 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 123,564 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.76 | 43,428 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 51,784 |
| Biggest Cities in Mexico | 0 | - | 4.50 | 37,966 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 105,719 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 72,380 |
| Biggest Nordic Cities | 0 | - | 4.38 | 61,048 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,766 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 162,819 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,309 |
| Biggest Cities by Latitude | 0 | - | 4.78 | 27,227 |
| Biggest Cities by Trait #2 | 0 | - | 4.41 | 15,027 |
| Flags to Largest Cities | 0 | - | 4.54 | 36,931 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.51 | 22,845 |
| The Most Populous U.S. City by Category | 0 | - | 4.34 | 21,927 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 23,808 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 107,171 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 91,507 |
| Biggest Cities in Georgia | 0 | - | 3.96 | 23,376 |
| Biggest World Cities A-Z | 0 | - | 4.56 | 217,534 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.83 | 54,611 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,404,351 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 369,576 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 161,847 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 120,141 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.74 | 67,810 |
| Largest Cities in Alexander's Empire | 0 | - | 4.57 | 39,586 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,505 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.46 | 30,479 |
| Biggest Cities in Portugal | 0 | - | 4.42 | 20,370 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,621 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 159,172 |
| Biggest Cities Starting With C | 0 | - | 4.10 | 102,911 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 84,921 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 123,562 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 125,189 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 165,617 |
| Countries with Megacities | 0 | - | 4.99 | 225,722 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 191,892 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 108,972 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 130,837 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 76,518 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 309,355 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 44,916 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,291 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 17,622 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 137,016 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 124,784 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 83,725 |
| Countries of Europe by Population | 0 | - | 4.98 | 171,115 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 261,158 |
| Most Populous Countries by Year | 0 | - | 4.82 | 106,024 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 118,306 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 109,524 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 90,291 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 93,875 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 124,098 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 103,684 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 109,751 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 87,081 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 90,977 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 56,527 |
