| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,323 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 85,117 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,690 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,561 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 349,735 |
| Biggest Cities in the World | 0 | - | 4.91 | 807,764 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,485 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,518 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,679 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 226,274 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 138,026 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 421,499 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 116,842 |
| Biggest Cities in the United States | 0 | - | 4.94 | 990,132 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,729 |
| Biggest City by Time Zone | 0 | - | 4.88 | 69,186 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,353 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 33,046 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 228,089 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,802 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,904 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 81,042 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,468 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,176 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,780 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,929 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,373 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,631 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,900 |
| Biggest Cities in Florida | 0 | - | 4.25 | 73,245 |
| Biggest Cities in New York State | 0 | - | 4.32 | 60,667 |
| Biggest Cities in Texas | 0 | - | 4.29 | 119,887 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,267 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,654 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 583,701 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 63,118 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,874 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,964 |
| Largest City by Island | 0 | - | 4.87 | 72,635 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,543 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,955 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,317 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,653 |
| Megacities on a World Map | 0 | - | 4.98 | 257,749 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 127,954 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,902 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,904 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,670 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,974 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,849 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,858 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,578 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,948 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,945 |
| Biggest Cities in North Carolina | 0 | - | 4.68 | 35,346 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,430 |
| Biggest Cities in Europe | 0 | - | 4.70 | 550,101 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,442 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,831 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,794 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,539 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 100,545 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 48,134 |
| Biggest Cities in Michigan | 0 | - | 3.98 | 34,398 |
| Biggest English Cities by Century | 0 | - | 4.91 | 107,137 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,401 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 74,064 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 92,681 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 44,228 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 37,048 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,579 |
| Biggest Cities in Pennsylvania | 0 | - | 4.12 | 46,951 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,512 |
| Biggest Cities in Ohio | 0 | - | 4.35 | 50,436 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,353 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,266 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,456 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 49,138 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,800 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,867 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,572 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 68,835 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,425 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,562 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,630 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 65,054 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,254 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,704 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,195 |
| Biggest City by Region | 0 | - | 4.50 | 36,433 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,398 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,616 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 85,025 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,338 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,474 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,646 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,618 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 166,143 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 127,592 |
| Biggest Cities in History | 0 | - | 4.52 | 90,752 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 79,286 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,630 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,120 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,669 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.30 | 118,996 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,648 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,792 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,483 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,764 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 177,141 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,643 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,874 |
| Biggest Cities in France | 0 | - | 4.72 | 225,774 |
| Biggest Cities in Spain | 0 | - | 4.64 | 172,468 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,389 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,392 |
| Biggest Cities in the UK | 0 | - | 4.48 | 106,033 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,265 |
| Biggest Cities in China | 0 | - | 4.53 | 160,335 |
| Biggest Cities in Canada | 0 | - | 4.55 | 133,745 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,535 |
| Biggest Cities in India | 0 | - | 4.64 | 68,157 |
| Biggest Cities in Italy | 0 | - | 4.78 | 242,887 |
| Biggest Cities in New Jersey | 0 | - | 4.13 | 29,546 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,373 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,967 |
| Biggest Cities in Alaska | 0 | - | 4.29 | 26,148 |
| Biggest Cities in Illinois | 0 | - | 4.36 | 27,167 |
| Biggest Cities in Louisiana | 0 | - | 4.17 | 20,121 |
| Biggest Cities in Massachusetts | 0 | - | 4.39 | 30,825 |
| Biggest Cities in Missouri | 0 | - | 4.25 | 17,550 |
| Biggest Cities in Tennessee | 0 | - | 4.26 | 21,041 |
| Biggest Cities in Indiana | 0 | - | 4.24 | 27,273 |
| Biggest Cities Starting With A | 0 | - | 4.63 | 125,351 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,327 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 110,154 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,776 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 144,541 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,958 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,958 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,543 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,670 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 337,232 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,258 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,217 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,738 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,160 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,556 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,942 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,996 |
| Flags to Largest Cities | 0 | - | 4.54 | 52,082 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,814 |
| The Most Populous U.S. City by Category | 0 | - | 4.37 | 22,513 |
| Cities of Ireland | 0 | - | 4.51 | 50,990 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,282 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,754 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,701 |
| Biggest World Cities A-Z | 0 | - | 4.61 | 224,531 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,457,186 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,292 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,262 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,294 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 40,070 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,135 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,944 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,463 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 21,250 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.31 | 41,012 |
| Biggest Cities in Georgia | 0 | - | 3.96 | 24,105 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 164,038 |
| Biggest Cities Starting With C | 0 | - | 4.12 | 105,951 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,638 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,554 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 129,011 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,726 |
| Countries with Megacities | 0 | - | 4.99 | 268,309 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,350 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,448 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,699 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,559 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,697 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,155 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.41 | 23,745 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,763 |
| Saint Lucia Country Quiz | 0 | - | 4.68 | 18,175 |
| Biggest U.S. Cities A-Z | 0 | - | 4.67 | 139,731 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,652 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,531 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,906 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,664 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,774 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,917 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 113,288 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,451 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 96,010 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,672 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,948 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,969 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 91,130 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,304 |
