| Biggest Cities in the U.S. - Extreme | 0 | - | 4.93 | 131,515 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 69,354 |
| 500 Biggest US Cities | 0 | - | 4.87 | 97,720 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.90 | 28,916 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.81 | 52,221 |
| Biggest Cities in the World | 0 | - | 4.89 | 685,375 |
| Biggest Cities in Asia | 0 | - | 4.94 | 95,688 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.91 | 43,351 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 41,593 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 90,959 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 40,283 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 33,942 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.76 | 38,699 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 370,582 |
| Biggest Cities in the United States | 0 | - | 4.92 | 814,406 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 333,247 |
| Biggest City by Time Zone | 0 | - | 4.84 | 54,224 |
| Biggest City in Every Country | 0 | - | 4.97 | 78,600 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 61,509 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 169,315 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 91,851 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 95,917 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 64,730 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 198,906 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.86 | 71,214 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 109,099 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.46 | 37,755 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.94 | 65,055 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 42,294 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 303,525 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.89 | 97,264 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 59,583 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 46,308 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.96 | 55,065 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 106,087 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 92,352 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 108,882 |
| Biggest Cities by Language | 0 | - | 4.95 | 213,676 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.94 | 64,731 |
| Most Populous World Capitals | 0 | - | 4.92 | 148,272 |
| Biggest European Cities by Century | 0 | - | 4.98 | 118,603 |
| Megacities on a World Map | 0 | - | 4.98 | 220,459 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.84 | 43,873 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.91 | 91,702 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 512,506 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 59,777 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 63,278 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 84,110 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 150,971 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.46 | 28,690 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 154,642 |
| Biggest Cities in Europe | 0 | - | 4.75 | 463,411 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.88 | 50,853 |
| Biggest Cities in France - Extreme | 0 | - | 4.89 | 43,593 |
| Megacities on an Empty Map | 0 | - | 4.95 | 87,401 |
| Biggest Cities in Germany | 0 | - | 4.95 | 262,568 |
| Biggest Cities in Canada | 0 | - | 4.66 | 120,267 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.44 | 60,286 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.37 | 37,144 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.25 | 90,882 |
| Biggest Cities in Sweden | 0 | - | 4.83 | 37,194 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 75,807 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.82 | 63,676 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 67,788 |
| Cities of China (With Some Help) | 0 | - | 4.86 | 28,145 |
| Biggest English Cities by Century | 0 | - | 4.90 | 99,493 |
| U.S. Cities by Hispanic Population | 0 | - | 4.26 | 24,534 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.79 | 68,701 |
| Biggest Mediterranean Cities | 0 | - | 4.57 | 86,511 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.63 | 36,781 |
| The Most Populous U.S. City by Category | 0 | - | 4.36 | 14,671 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.46 | 28,512 |
| Cities on Interstate 90 on a Map | 0 | - | 4.40 | 25,200 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.48 | 97,497 |
| Biggest Cities by Trait #1 | 0 | - | 4.45 | 43,029 |
| Biggest City by Region | 0 | - | 4.49 | 33,599 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 53,322 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,333 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.70 | 56,239 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.71 | 74,447 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 76,454 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 46,976 |
| Biggest English-Speaking Cities | 0 | - | 4.42 | 136,113 |
| Biggest European Cities by Letter | 0 | - | 4.65 | 118,539 |
| Biggest City by Island | 0 | - | 4.57 | 45,740 |
| Biggest Cities in History | 0 | - | 4.50 | 80,085 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 67,906 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.65 | 62,880 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.97 | 77,816 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.50 | 40,086 |
| Biggest World Cities in 1850 | 0 | - | 4.58 | 64,535 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 32,877 |
| Saint Lucia Country Quiz | 0 | - | 4.70 | 16,259 |
| Biggest Cities in North Carolina | 0 | - | 4.66 | 31,905 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 112,044 |
| Biggest Cities Starting With D | 0 | - | 4.49 | 106,751 |
| Biggest Cities Starting With H | 0 | - | 4.55 | 97,493 |
| Biggest Cities Starting With L | 0 | - | 4.45 | 110,324 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 128,619 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 114,535 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 52,542 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.57 | 35,926 |
| Biggest Cities in Japan | 0 | - | 4.66 | 75,238 |
| Biggest Cities in Russia | 0 | - | 4.49 | 76,328 |
| Biggest Cities in France | 0 | - | 4.76 | 199,071 |
| Biggest Cities in Spain | 0 | - | 4.50 | 153,251 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 50,080 |
| Biggest Cities in Poland | 0 | - | 4.56 | 47,999 |
| Biggest Cities in the UK | 0 | - | 4.46 | 93,283 |
| Biggest Cities in China | 0 | - | 4.64 | 138,179 |
| Cities of Ireland | 0 | - | 4.43 | 39,679 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 43,507 |
| Biggest Cities in India | 0 | - | 4.72 | 62,296 |
| Biggest Cities in Italy | 0 | - | 4.65 | 216,797 |
| US States Quiz | 0 | - | 5.00 | 14,701,321 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 136,971 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.95 | 109,551 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 70,135 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 38,952 |
| Biggest Coastal City by Country | 0 | - | 4.59 | 27,015 |
| Biggest City by Region #2 | 0 | - | 4.45 | 23,094 |
| Biggest Cities by Latitude | 0 | - | 4.76 | 26,221 |
| Largest World Cities With Four Letters | 0 | - | 4.41 | 43,200 |
| Northernmost Major City by Country | 0 | - | 4.56 | 30,835 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.95 | 27,835 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.79 | 99,011 |
| Biggest Nordic Cities | 0 | - | 4.38 | 59,644 |
| Five Biggest Cities by Country | 0 | - | 4.67 | 152,276 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.79 | 42,451 |
| Flags to Largest Cities | 0 | - | 4.54 | 31,838 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.47 | 20,679 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 48,315 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.76 | 64,288 |
| All Cities in China with Population of 1 Million | 0 | - | 4.79 | 38,537 |
| All Cities in India with Population of 1 Million | 0 | - | 4.79 | 40,849 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 22,745 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 27,881 |
| Biggest Cities in California | 0 | - | 4.35 | 130,288 |
| Biggest Cities in Florida | 0 | - | 4.20 | 67,292 |
| Biggest Cities in New York State | 0 | - | 4.29 | 55,770 |
| Biggest Cities in Pennsylvania | 0 | - | 4.14 | 42,631 |
| Biggest Cities in Ohio | 0 | - | 4.36 | 45,647 |
| Biggest Cities in Texas | 0 | - | 4.26 | 111,247 |
| Biggest Cities in Wisconsin | 0 | - | 4.45 | 23,346 |
| Biggest World Cities A-Z | 0 | - | 4.55 | 193,594 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,309,214 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 348,879 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 125,447 |
| Countries with Megacities | 0 | - | 4.99 | 196,597 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 171,011 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 97,636 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 94,925 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 63,597 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 247,243 |
| Largest Cities in Alexander's Empire | 0 | - | 4.56 | 38,596 |
| Biggest Cities in the World - 2100 | 0 | - | 4.29 | 80,943 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 24,416 |
| Largest Nordic Cities on a Map | 0 | - | 4.76 | 23,190 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 31,559 |
| Biggest Urban Areas in the UK | 0 | - | 4.40 | 167,633 |
| Biggest Cities in Portugal | 0 | - | 4.41 | 18,768 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,802 |
| Biggest Cities Starting With B | 0 | - | 4.35 | 147,837 |
| Biggest Cities Starting With C | 0 | - | 4.07 | 96,900 |
| Biggest Cities Starting With K | 0 | - | 4.30 | 78,685 |
| Biggest Cities Starting With S | 0 | - | 4.39 | 114,496 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 116,093 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,525,149 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.82 | 61,264 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 124,215 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.95 | 273,103 |
| 10 Longest Rivers in the United States | 0 | - | 4.82 | 34,956 |
| U.S. States with the Longest International Borders | 0 | - | 4.81 | 40,514 |
| US States with an Empty Map | 0 | - | 5.00 | 552,798 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 71,001 |
| Louisiana Purchase with a Map | 0 | - | 4.95 | 35,997 |
| U.S. States or European Countries by Population | 0 | - | 4.98 | 115,885 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.77 | 18,972 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 116,853 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 65,955 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 244,693 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 108,824 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,831 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 68,662 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 50,389 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.79 | 64,933 |
| Biggest Cities by Trait #2 | 0 | - | 4.38 | 14,156 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.41 | 13,102 |
| Biggest Cities in Mexico | 0 | - | 4.55 | 29,169 |
| U.S. State Capitals Map Quiz | 0 | - | 4.91 | 125,394 |
| Countries Closest to Alaska | 0 | - | 4.93 | 98,835 |
| Countries Closest to Maine | 0 | - | 4.85 | 58,815 |
| Hawaiian Islands Map Quiz | 0 | - | 4.88 | 20,963 |
| Great Plains States and Provinces on a Map | 0 | - | 4.94 | 37,853 |
| Rivers of the United States | 0 | - | 4.91 | 56,777 |
| Name a Valid U.S. State #1 | 0 | - | 4.95 | 184,276 |
| Top 10 Coldest U.S. States | 0 | - | 4.91 | 99,754 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 100,492 |
| Top 10 Most Native American U.S. States | 0 | - | 4.84 | 71,092 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 57,039 |
