| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,864 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,060 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,289 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,871 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 347,903 |
| Biggest Cities in the World | 0 | - | 4.92 | 803,793 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,915 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,343 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,399 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 97,003 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,448 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,714 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,883 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,358 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,473 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,877 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,185 |
| Biggest Cities in the United States | 0 | - | 4.94 | 984,661 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,540 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,730 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,660 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,863 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,222 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,120 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,568 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,094 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,829 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,065 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,741 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,400 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,458 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,481 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,549 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,759 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,079 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,204 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,905 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,391 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,423 |
| Largest City by Island | 0 | - | 4.87 | 72,287 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,328 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,515 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,006 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,428 |
| Megacities on a World Map | 0 | - | 4.98 | 256,256 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,079 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 580,982 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,663 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,484 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,243 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,828 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,750 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,728 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,394 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,440 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,203 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,279 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,384 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,833 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,381 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,024 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,622 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,241 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,904 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 91,685 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,120 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,965 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,493 |
| Biggest Cities in California | 0 | - | 4.35 | 140,250 |
| Biggest Cities in Florida | 0 | - | 4.25 | 72,316 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,858 |
| Biggest Cities in Pennsylvania | 0 | - | 4.13 | 45,501 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,371 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,791 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,925 |
| Biggest Cities in Texas | 0 | - | 4.29 | 119,582 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,253 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,017 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,991 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,691 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,320 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,792 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,696 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,436 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 67,764 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,919 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,964 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,614 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,937 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,109 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,547 |
| Biggest City by Region | 0 | - | 4.50 | 36,343 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,273 |
| Biggest Cities by Latitude Range | 0 | - | 4.80 | 32,072 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,491 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,057 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,276 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,541 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,415 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,481 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,523 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,125 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,054 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.30 | 118,074 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,475 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,315 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,606 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,399 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,686 |
| Biggest Cities in France | 0 | - | 4.70 | 224,956 |
| Biggest Cities in Spain | 0 | - | 4.64 | 171,888 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,198 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,189 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,668 |
| Biggest Cities in China | 0 | - | 4.53 | 159,558 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,328 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,401 |
| Biggest Cities in India | 0 | - | 4.64 | 67,982 |
| Biggest Cities in Italy | 0 | - | 4.77 | 242,043 |
| Biggest Cities in New Jersey | 0 | - | 4.14 | 29,171 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,266 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,865 |
| Biggest Cities in Alaska | 0 | - | 4.29 | 25,986 |
| Biggest Cities in Illinois | 0 | - | 4.36 | 27,045 |
| Biggest Cities in Louisiana | 0 | - | 4.17 | 20,044 |
| Biggest Cities in Massachusetts | 0 | - | 4.39 | 30,696 |
| Biggest Cities in Michigan | 0 | - | 3.98 | 34,258 |
| Biggest Cities in Missouri | 0 | - | 4.25 | 17,471 |
| Biggest Cities in Tennessee | 0 | - | 4.26 | 20,978 |
| Biggest Cities in Indiana | 0 | - | 4.24 | 27,130 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,573 |
| Biggest Cities in History | 0 | - | 4.52 | 90,468 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,764 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,557 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,901 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.41 | 23,686 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,635 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,604 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,356 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,511 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,994 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,046 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,839 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,434 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,899 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,561 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,719,009 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,594 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,056 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,144 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,668 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,123 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,128 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,894 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 40,021 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,832 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,721 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,706 |
| The Most Populous U.S. City by Category | 0 | - | 4.37 | 22,451 |
| Cities of Ireland | 0 | - | 4.51 | 50,842 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,244 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,442 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,423 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,837 |
| Vietnam War Countries | 0 | - | 4.82 | 94,505 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,170 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,732 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,858 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,757 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,779 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,058 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,895 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,694 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,340 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 21,138 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,976 |
| Biggest Cities in Georgia | 0 | - | 3.96 | 23,991 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,609 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,699 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,408 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,205 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,691 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,792 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,295 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,603 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,153 |
| Countries with Megacities | 0 | - | 4.99 | 266,096 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,682 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,482 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,353 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,759 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,806 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,631 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,032 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,932 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,441 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,936 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,391 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,093 |
| Saint Lucia Country Quiz | 0 | - | 4.68 | 18,131 |
