| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,912 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,207 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,329 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,944 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,081 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,968 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,370 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,430 |
| Biggest Cities in the World | 0 | - | 4.92 | 804,242 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,453 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,538 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,254 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,876 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,129 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,060 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,806 |
| Biggest Cities in the United States | 0 | - | 4.94 | 985,253 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,651 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,790 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,742 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,012 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,279 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,452 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,382 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,622 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,138 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,180 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,224 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,803 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,524 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,299 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,587 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,113 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,256 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,067 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,872 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,742 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,433 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,475 |
| Largest City by Island | 0 | - | 4.87 | 72,337 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,352 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,550 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,037 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,820 |
| Megacities on a World Map | 0 | - | 4.98 | 256,448 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,694 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,535 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,915 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 97,110 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,473 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,401 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,811 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,926 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,500 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,865 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,554 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,059 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,645 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,047 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,262 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,925 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 91,862 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,138 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,974 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,501 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.41 | 23,695 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,300 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 49,008 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,704 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,717 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,421 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,475 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,448 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 67,899 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,334 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,940 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,409 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,215 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,999 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,623 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,964 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,122 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,557 |
| Biggest City by Region | 0 | - | 4.50 | 36,359 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,291 |
| Biggest Cities by Latitude Range | 0 | - | 4.80 | 32,434 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,507 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,066 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.30 | 118,163 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,284 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,555 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,426 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,499 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,539 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,143 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,644 |
| Biggest Cities in History | 0 | - | 4.52 | 90,505 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,829 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,572 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,904 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,507 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,331 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,656 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,634 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,419 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,707 |
| Biggest Cities in France | 0 | - | 4.70 | 225,053 |
| Biggest Cities in Spain | 0 | - | 4.64 | 171,950 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,215 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,376 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,217 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,530 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,708 |
| Biggest Cities in China | 0 | - | 4.53 | 159,654 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,377 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,413 |
| Biggest Cities in India | 0 | - | 4.64 | 68,005 |
| Biggest Cities in Italy | 0 | - | 4.77 | 242,134 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,029 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,085 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,871 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,469 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,943 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,604 |
| Random U.S. States on a Map | 0 | - | 4.96 | 629,475 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,677 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,715 |
| The Most Populous U.S. City by Category | 0 | - | 4.37 | 22,457 |
| Cities of Ireland | 0 | - | 4.51 | 50,863 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,250 |
| Biggest Cities in California | 0 | - | 4.35 | 140,282 |
| Biggest Cities in Florida | 0 | - | 4.25 | 72,340 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,871 |
| Biggest Cities in Pennsylvania | 0 | - | 4.13 | 45,509 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,374 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,798 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,938 |
| Biggest Cities in Texas | 0 | - | 4.29 | 119,594 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,270 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,558 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,810 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,842 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,355 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,081 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,158 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,128 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,179 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,897 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 40,026 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,063 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,847 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,743 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,901 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,702 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,348 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 21,146 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,484 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,450 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,976 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,932 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,670 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,724 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,438 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,234 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,727 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 235,093 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,799 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,452,261 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,015 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,809 |
| Countries with Megacities | 0 | - | 4.99 | 266,410 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,514 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,917 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,809 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,036 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,433 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,099 |
| Saint Lucia Country Quiz | 0 | - | 4.68 | 18,133 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,528 |
| Biggest Cities in New Jersey | 0 | - | 4.14 | 29,229 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,276 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,872 |
| Biggest Cities in Alaska | 0 | - | 4.29 | 26,000 |
| Biggest Cities in Illinois | 0 | - | 4.36 | 27,049 |
| Biggest Cities in Louisiana | 0 | - | 4.17 | 20,047 |
| Biggest Cities in Massachusetts | 0 | - | 4.39 | 30,706 |
| Biggest Cities in Michigan | 0 | - | 3.98 | 34,263 |
| Biggest Cities in Missouri | 0 | - | 4.25 | 17,475 |
| Biggest Cities in Tennessee | 0 | - | 4.26 | 20,979 |
| Biggest Cities in Indiana | 0 | - | 4.24 | 27,139 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 428,100 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 383,276 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,331 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,206 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,525 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,776 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,245 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,520 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,804 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,089 |
