| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 349,623 |
| Biggest Cities in the World | 0 | - | 4.91 | 807,560 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,445 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,507 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,657 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 226,224 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,999 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 421,399 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 116,798 |
| Biggest Cities in the United States | 0 | - | 4.94 | 989,880 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,678 |
| Biggest City by Time Zone | 0 | - | 4.88 | 69,168 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,293 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 33,025 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 228,014 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,767 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,810 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 81,017 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,443 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,160 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,758 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,898 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,353 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,616 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,870 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 127,584 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,295 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,246 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,617 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 583,545 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 85,078 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,669 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,536 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 63,087 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,841 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,939 |
| Largest City by Island | 0 | - | 4.87 | 72,612 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,532 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,938 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,300 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,631 |
| Megacities on a World Map | 0 | - | 4.98 | 257,661 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 127,923 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,883 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,887 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,651 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,918 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,799 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,846 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,930 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,402 |
| Biggest Cities in Europe | 0 | - | 4.70 | 550,006 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,420 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,801 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,755 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,534 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 100,481 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 48,126 |
| Biggest English Cities by Century | 0 | - | 4.91 | 107,125 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,388 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 74,052 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,559 |
| Biggest Cities in North Carolina | 0 | - | 4.68 | 35,329 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,254 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,858 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,562 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 68,785 |
| Biggest Cities in Canada | 0 | - | 4.55 | 133,720 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 65,045 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,237 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,691 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,190 |
| Biggest City by Region | 0 | - | 4.50 | 36,430 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,390 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 85,007 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,335 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,467 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,638 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,611 |
| Biggest Cities in California | 0 | - | 4.35 | 140,597 |
| Biggest Cities in Florida | 0 | - | 4.25 | 72,519 |
| Biggest Cities in New York State | 0 | - | 4.32 | 60,014 |
| Biggest Cities in Pennsylvania | 0 | - | 4.12 | 46,585 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,488 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,921 |
| Biggest Cities in Ohio | 0 | - | 4.35 | 50,089 |
| Biggest Cities in Texas | 0 | - | 4.29 | 119,859 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,342 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 166,111 |
| Biggest Cities in History | 0 | - | 4.52 | 90,740 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 79,260 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,624 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,446 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,116 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 49,134 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 92,636 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,798 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,660 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 44,219 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 37,042 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,571 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,755 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,478 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,752 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 177,128 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,629 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,865 |
| Biggest Cities in France | 0 | - | 4.72 | 225,742 |
| Biggest Cities in Spain | 0 | - | 4.64 | 172,438 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,383 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,381 |
| Biggest Cities in the UK | 0 | - | 4.48 | 106,016 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,257 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,458 |
| Biggest Cities in China | 0 | - | 4.53 | 160,303 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,529 |
| Biggest Cities in India | 0 | - | 4.64 | 68,147 |
| Biggest Cities in Italy | 0 | - | 4.78 | 242,834 |
| Biggest U.S. Cities A-Z | 0 | - | 4.67 | 139,722 |
| Biggest Cities Starting With A | 0 | - | 4.63 | 125,330 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,308 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 110,143 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,765 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 144,515 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,944 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,549 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,623 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,957 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,521 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,660 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 337,064 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,243 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,210 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,735 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,157 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,537 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,939 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,607 |
| Biggest Axis-Controlled Cities | 0 | - | 4.44 | 49,095 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,993 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,979 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,807 |
| Cities of Ireland | 0 | - | 4.51 | 50,982 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,279 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,743 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,690 |
| Biggest Cities in New Jersey | 0 | - | 4.13 | 29,514 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,353 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,956 |
| Biggest Cities in Alaska | 0 | - | 4.29 | 26,124 |
| Biggest Cities in Illinois | 0 | - | 4.36 | 27,151 |
| Biggest Cities in Louisiana | 0 | - | 4.17 | 20,109 |
| Biggest Cities in Massachusetts | 0 | - | 4.39 | 30,803 |
| Biggest Cities in Michigan | 0 | - | 3.98 | 34,378 |
| Biggest Cities in Missouri | 0 | - | 4.25 | 17,541 |
| Biggest Cities in Tennessee | 0 | - | 4.26 | 21,027 |
| Biggest Cities in Indiana | 0 | - | 4.24 | 27,255 |
| Biggest World Cities A-Z | 0 | - | 4.61 | 224,492 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,733,183 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,867 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,218 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,238 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,265 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 40,069 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.30 | 118,942 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,644 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,129 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,940 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 21,247 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.31 | 41,010 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 164,010 |
| Biggest Cities Starting With C | 0 | - | 4.12 | 105,937 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,625 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,536 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,994 |
| Vietnam War Countries | 0 | - | 4.82 | 94,786 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,662 |
| Countries with Megacities | 0 | - | 4.99 | 268,191 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,304 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,413 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,641 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,532 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,675 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,153 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,759 |
| Saint Lucia Country Quiz | 0 | - | 4.68 | 18,170 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.89 | 99,861 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.86 | 114,801 |
| Countries that Start with A - Shape Quiz | 0 | - | 4.93 | 35,278 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.94 | 83,336 |
| Flags of the Countries that Start with C | 0 | - | 4.89 | 130,842 |
| Flags of the Countries that Start with I | 0 | - | 4.94 | 154,824 |
| Flags of the Countries that Start with B | 0 | - | 4.97 | 43,788 |
| Flags of the Countries that Start with A | 0 | - | 4.94 | 128,074 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,620 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,513 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,820 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,627 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,732 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,893 |
