| Biggest Cities in the U.S. - Extreme | 0 | - | 4.94 | 134,399 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 69,632 |
| 500 Biggest US Cities | 0 | - | 4.87 | 98,480 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.91 | 29,223 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.81 | 52,515 |
| Biggest Cities in the World | 0 | - | 4.89 | 688,782 |
| Biggest Cities in Asia | 0 | - | 4.94 | 96,122 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 43,585 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 41,865 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 91,420 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.49 | 60,647 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 40,403 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 34,023 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 371,976 |
| Biggest Cities in the United States | 0 | - | 4.93 | 824,027 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 334,586 |
| Biggest City by Time Zone | 0 | - | 4.84 | 54,586 |
| Biggest City in Every Country | 0 | - | 4.97 | 79,116 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 61,623 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 170,320 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 92,331 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 96,611 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 65,128 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 199,845 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.86 | 71,692 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 116,113 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.46 | 37,813 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.94 | 65,454 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 42,461 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 304,806 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.89 | 97,800 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 59,852 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 46,447 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 55,424 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 106,661 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.96 | 93,010 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 109,151 |
| Biggest Cities by Language | 0 | - | 4.95 | 214,205 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.94 | 64,923 |
| Most Populous World Capitals | 0 | - | 4.92 | 148,743 |
| Biggest European Cities by Century | 0 | - | 4.98 | 118,975 |
| Megacities on a World Map | 0 | - | 4.98 | 221,040 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.84 | 44,043 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.91 | 92,388 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 515,031 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 59,973 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 63,576 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 84,626 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 151,458 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 30,451 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 155,098 |
| Biggest Cities in Europe | 0 | - | 4.76 | 465,919 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.88 | 51,008 |
| Biggest Cities in France - Extreme | 0 | - | 4.89 | 43,975 |
| Megacities on an Empty Map | 0 | - | 4.95 | 87,695 |
| Biggest Cities in Germany | 0 | - | 4.95 | 263,606 |
| Biggest Cities in Canada | 0 | - | 4.66 | 120,943 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.45 | 60,470 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.38 | 37,310 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.25 | 91,800 |
| Cities on Interstate 90 on a Map | 0 | - | 4.41 | 27,962 |
| Biggest Cities in Sweden | 0 | - | 4.82 | 37,309 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 76,565 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 63,845 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 67,958 |
| Cities of China (With Some Help) | 0 | - | 4.87 | 28,273 |
| Biggest English Cities by Century | 0 | - | 4.90 | 99,687 |
| U.S. Cities by Hispanic Population | 0 | - | 4.26 | 24,564 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.79 | 68,904 |
| Biggest Mediterranean Cities | 0 | - | 4.57 | 86,639 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.63 | 36,950 |
| The Most Populous U.S. City by Category | 0 | - | 4.36 | 14,724 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.46 | 28,586 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.48 | 97,583 |
| Biggest Cities by Trait #1 | 0 | - | 4.45 | 43,108 |
| Biggest City by Region | 0 | - | 4.49 | 33,699 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 53,465 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,402 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.67 | 56,380 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.71 | 74,624 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 76,819 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 47,064 |
| Biggest English-Speaking Cities | 0 | - | 4.42 | 136,322 |
| Biggest European Cities by Letter | 0 | - | 4.66 | 119,096 |
| Biggest City by Island | 0 | - | 4.57 | 45,803 |
| Biggest Cities in History | 0 | - | 4.50 | 80,388 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 68,022 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.65 | 62,973 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.97 | 78,120 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.49 | 40,187 |
| Biggest World Cities in 1850 | 0 | - | 4.58 | 64,652 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 31,730 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 33,018 |
| Saint Lucia Country Quiz | 0 | - | 4.66 | 16,346 |
| Biggest Cities in North Carolina | 0 | - | 4.66 | 32,021 |
| Biggest Cities Starting With A | 0 | - | 4.56 | 112,368 |
| Biggest Cities Starting With D | 0 | - | 4.49 | 106,986 |
| Biggest Cities Starting With H | 0 | - | 4.55 | 97,819 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 110,700 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 129,054 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 114,883 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 52,658 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.57 | 36,164 |
| Biggest Cities in Japan | 0 | - | 4.66 | 75,725 |
| Biggest Cities in Russia | 0 | - | 4.49 | 76,753 |
| Biggest Cities in France | 0 | - | 4.76 | 200,026 |
| Biggest Cities in Spain | 0 | - | 4.50 | 153,823 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 50,314 |
| Biggest Cities in Poland | 0 | - | 4.57 | 48,187 |
| Biggest Cities in the UK | 0 | - | 4.46 | 93,667 |
| Biggest Cities in China | 0 | - | 4.64 | 138,991 |
| Cities of Ireland | 0 | - | 4.43 | 39,788 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 43,638 |
| Biggest Cities in India | 0 | - | 4.72 | 62,499 |
| Biggest Cities in Italy | 0 | - | 4.65 | 217,609 |
| US States Quiz | 0 | - | 5.00 | 14,770,963 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 137,435 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.95 | 110,000 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 70,246 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 39,004 |
| Biggest Coastal City by Country | 0 | - | 4.59 | 27,039 |
| Biggest City by Region #2 | 0 | - | 4.46 | 23,150 |
| Biggest Cities by Latitude | 0 | - | 4.76 | 26,258 |
| Largest World Cities With Four Letters | 0 | - | 4.41 | 43,277 |
| Northernmost Major City by Country | 0 | - | 4.56 | 30,911 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.95 | 28,560 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.79 | 99,630 |
| Biggest Nordic Cities | 0 | - | 4.38 | 59,698 |
| Five Biggest Cities by Country | 0 | - | 4.67 | 152,681 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.79 | 42,493 |
| Flags to Largest Cities | 0 | - | 4.54 | 32,080 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.47 | 20,762 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 48,486 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.76 | 64,758 |
| All Cities in China with Population of 1 Million | 0 | - | 4.79 | 38,746 |
| All Cities in India with Population of 1 Million | 0 | - | 4.79 | 41,072 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 22,783 |
| Biggest Cities in Washington State | 0 | - | 4.45 | 29,428 |
| Biggest Cities in California | 0 | - | 4.35 | 130,565 |
| Biggest Cities in Florida | 0 | - | 4.20 | 67,451 |
| Biggest Cities in New York State | 0 | - | 4.29 | 55,907 |
| Biggest Cities in Pennsylvania | 0 | - | 4.14 | 42,722 |
| Biggest Cities in Ohio | 0 | - | 4.37 | 45,757 |
| Biggest Cities in Texas | 0 | - | 4.26 | 111,498 |
| Biggest Cities in Wisconsin | 0 | - | 4.45 | 23,413 |
| Biggest World Cities A-Z | 0 | - | 4.55 | 194,266 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,313,190 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 349,972 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 126,518 |
| Countries with Megacities | 0 | - | 4.99 | 197,810 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 172,035 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 98,240 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 95,869 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 64,215 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 248,552 |
| Largest Cities in Alexander's Empire | 0 | - | 4.56 | 38,637 |
| Biggest Cities in the World - 2100 | 0 | - | 4.29 | 81,378 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 24,472 |
| Largest Nordic Cities on a Map | 0 | - | 4.76 | 23,392 |
| Biggest Urban Areas in the UK | 0 | - | 4.40 | 167,941 |
| Biggest Cities in Portugal | 0 | - | 4.41 | 18,829 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,830 |
| Biggest Cities Starting With B | 0 | - | 4.35 | 148,235 |
| Biggest Cities Starting With C | 0 | - | 4.07 | 97,087 |
| Biggest Cities Starting With K | 0 | - | 4.30 | 78,878 |
| Biggest Cities Starting With S | 0 | - | 4.39 | 114,821 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 116,409 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,530,489 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 61,590 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 124,621 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.96 | 274,699 |
| 10 Longest Rivers in the United States | 0 | - | 4.82 | 35,057 |
| U.S. States with the Longest International Borders | 0 | - | 4.81 | 40,949 |
| US States with an Empty Map | 0 | - | 5.00 | 555,051 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 71,409 |
| Louisiana Purchase with a Map | 0 | - | 4.95 | 36,311 |
| U.S. States or European Countries by Population | 0 | - | 4.98 | 116,245 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.77 | 19,119 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 117,098 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,254 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 245,325 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 109,210 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 100,836 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 70,170 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 50,619 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.79 | 65,069 |
| Biggest Cities by Trait #2 | 0 | - | 4.38 | 14,200 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.41 | 13,149 |
| Biggest Cities in Mexico | 0 | - | 4.54 | 29,345 |
| U.S. State Capitals Map Quiz | 0 | - | 4.91 | 126,032 |
| Countries Closest to Alaska | 0 | - | 4.92 | 99,139 |
| Countries Closest to Maine | 0 | - | 4.85 | 59,038 |
| Hawaiian Islands Map Quiz | 0 | - | 4.88 | 21,041 |
| Great Plains States and Provinces on a Map | 0 | - | 4.94 | 38,142 |
| Rivers of the United States | 0 | - | 4.91 | 57,098 |
| Name a Valid U.S. State #1 | 0 | - | 4.95 | 185,028 |
| Top 10 Coldest U.S. States | 0 | - | 4.91 | 100,355 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 100,866 |
| Top 10 Most Native American U.S. States | 0 | - | 4.84 | 71,403 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 57,151 |
