| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,302 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 85,082 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,673 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,538 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 349,648 |
| Biggest Cities in the World | 0 | - | 4.91 | 807,597 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,454 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,508 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,660 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,807 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,759 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 100,497 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 48,128 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,563 |
| Biggest Cities in North Carolina | 0 | - | 4.68 | 35,330 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 226,229 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 138,005 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 421,421 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 116,808 |
| Biggest Cities in the United States | 0 | - | 4.94 | 989,919 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,684 |
| Biggest City by Time Zone | 0 | - | 4.88 | 69,173 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,302 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 33,028 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 228,027 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,775 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,837 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 81,023 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,446 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,161 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,765 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,901 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,357 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,618 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,877 |
| Biggest Cities in California | 0 | - | 4.35 | 140,604 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,251 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,623 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 583,563 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 63,094 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,851 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,941 |
| Largest City by Island | 0 | - | 4.87 | 72,617 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,535 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,942 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,304 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,635 |
| Megacities on a World Map | 0 | - | 4.98 | 257,681 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 127,927 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,887 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,892 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,654 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,935 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,807 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,850 |
| Biggest Cities in Florida | 0 | - | 4.25 | 72,522 |
| Biggest Cities in New York State | 0 | - | 4.32 | 60,017 |
| Biggest Cities in Pennsylvania | 0 | - | 4.12 | 46,696 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,933 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,492 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,924 |
| Biggest Cities in Ohio | 0 | - | 4.35 | 50,194 |
| Biggest Cities in Texas | 0 | - | 4.29 | 119,864 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,344 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,412 |
| Biggest Cities in Europe | 0 | - | 4.70 | 550,022 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,427 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,536 |
| Biggest English Cities by Century | 0 | - | 4.91 | 107,129 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,389 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 74,054 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 92,645 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 44,221 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 37,043 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,571 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,256 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,447 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 49,134 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,798 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,858 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,564 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 68,800 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,417 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,550 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,625 |
| Biggest Cities in New Jersey | 0 | - | 4.13 | 29,516 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,354 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,958 |
| Biggest Cities in Alaska | 0 | - | 4.29 | 26,128 |
| Biggest Cities in Illinois | 0 | - | 4.36 | 27,152 |
| Biggest Cities in Louisiana | 0 | - | 4.17 | 20,112 |
| Biggest Cities in Massachusetts | 0 | - | 4.39 | 30,807 |
| Biggest Cities in Michigan | 0 | - | 3.98 | 34,381 |
| Biggest Cities in Missouri | 0 | - | 4.25 | 17,542 |
| Biggest Cities in Tennessee | 0 | - | 4.26 | 21,029 |
| Biggest Cities in Indiana | 0 | - | 4.24 | 27,258 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 65,047 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,238 |
| 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 | 36,431 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,391 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,608 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 85,011 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,337 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,469 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,640 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,614 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 166,123 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 127,586 |
| Biggest Cities in History | 0 | - | 4.52 | 90,742 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 79,263 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,626 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,117 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,660 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.30 | 118,951 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,644 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,766 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,479 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,754 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 177,133 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,631 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,866 |
| Biggest Cities in France | 0 | - | 4.72 | 225,744 |
| Biggest Cities in Spain | 0 | - | 4.64 | 172,443 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,385 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,382 |
| Biggest Cities in the UK | 0 | - | 4.48 | 106,018 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,258 |
| Biggest Cities in China | 0 | - | 4.53 | 160,308 |
| Biggest Cities in Canada | 0 | - | 4.55 | 133,726 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,530 |
| Biggest Cities in India | 0 | - | 4.64 | 68,147 |
| Biggest Cities in Italy | 0 | - | 4.78 | 242,838 |
| Biggest Cities Starting With A | 0 | - | 4.63 | 125,334 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,312 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 110,147 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,768 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 144,518 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,945 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,957 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,524 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,660 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 337,093 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,248 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,211 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,735 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,158 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,543 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,939 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,994 |
| Flags to Largest Cities | 0 | - | 4.54 | 52,007 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,810 |
| The Most Populous U.S. City by Category | 0 | - | 4.37 | 22,511 |
| 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 | 110,747 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,692 |
| Biggest Cities in Georgia | 0 | - | 3.96 | 24,095 |
| Biggest World Cities A-Z | 0 | - | 4.61 | 224,499 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,405 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,939 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,243 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,246 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,276 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 40,069 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,129 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,941 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,458 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 21,250 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.31 | 41,010 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 164,016 |
| Biggest Cities Starting With C | 0 | - | 4.12 | 105,940 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,628 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,537 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,999 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.69 | 23,907 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,675 |
| Countries with Megacities | 0 | - | 4.99 | 268,213 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,310 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,418 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,653 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,538 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,679 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,153 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.41 | 23,745 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,759 |
| Saint Lucia Country Quiz | 0 | - | 4.68 | 18,170 |
| Biggest U.S. Cities A-Z | 0 | - | 4.67 | 139,723 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,634 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,520 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,845 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,635 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,739 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,896 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 113,277 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,436 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 96,005 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,658 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,935 |
