| Biggest Cities in the United States | 0 | - | 4.92 | 814,999 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 333,521 |
| Biggest Cities in the World | 0 | - | 4.89 | 685,944 |
| Biggest City by Time Zone | 0 | - | 4.84 | 54,280 |
| Biggest City in Every Country | 0 | - | 4.97 | 78,668 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 169,476 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 91,939 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 96,025 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 64,805 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.86 | 71,321 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 370,825 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.94 | 65,111 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 42,314 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 59,630 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 46,333 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 55,118 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 512,886 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 108,936 |
| Biggest Cities by Language | 0 | - | 4.95 | 213,775 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 64,782 |
| Most Populous World Capitals | 0 | - | 4.92 | 148,346 |
| Biggest European Cities by Century | 0 | - | 4.98 | 118,693 |
| Megacities on a World Map | 0 | - | 4.98 | 220,552 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 59,809 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 63,336 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 84,190 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 151,076 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 154,742 |
| Biggest Cities in Asia | 0 | - | 4.94 | 95,753 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.91 | 43,375 |
| Megacities on an Empty Map | 0 | - | 4.95 | 87,463 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 41,636 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.82 | 63,702 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 67,816 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 199,017 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 109,158 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 303,711 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.89 | 97,335 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.93 | 131,571 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.84 | 43,893 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.91 | 91,775 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 69,400 |
| 500 Biggest US Cities | 0 | - | 4.87 | 97,876 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.81 | 52,285 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.48 | 97,518 |
| Biggest Cities by Trait #1 | 0 | - | 4.45 | 43,049 |
| Biggest City by Region | 0 | - | 4.49 | 33,619 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 53,344 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,350 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 76,516 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 47,001 |
| Biggest Cities in Europe | 0 | - | 4.76 | 463,829 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.88 | 50,886 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 90,995 |
| Biggest Cities in France - Extreme | 0 | - | 4.89 | 43,645 |
| Biggest Cities in Germany | 0 | - | 4.95 | 262,718 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.90 | 28,971 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 137,040 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.95 | 109,623 |
| Biggest English-Speaking Cities | 0 | - | 4.42 | 136,145 |
| Biggest City by Island | 0 | - | 4.57 | 45,752 |
| Biggest Cities in History | 0 | - | 4.50 | 80,141 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 67,928 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.50 | 40,103 |
| Biggest World Cities in 1850 | 0 | - | 4.58 | 64,552 |
| Biggest Cities in Sweden | 0 | - | 4.83 | 37,213 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 75,918 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 112,101 |
| Biggest Cities Starting With D | 0 | - | 4.49 | 106,794 |
| Biggest Cities Starting With H | 0 | - | 4.55 | 97,554 |
| Biggest Cities Starting With L | 0 | - | 4.45 | 110,378 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 128,685 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 114,601 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 70,161 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 38,967 |
| Biggest Coastal City by Country | 0 | - | 4.59 | 27,022 |
| Biggest City by Region #2 | 0 | - | 4.45 | 23,101 |
| Biggest Cities by Latitude | 0 | - | 4.76 | 26,229 |
| Northernmost Major City by Country | 0 | - | 4.56 | 30,848 |
| Cities of China (With Some Help) | 0 | - | 4.86 | 28,169 |
| Largest World Cities With Four Letters | 0 | - | 4.41 | 43,217 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.79 | 68,725 |
| Biggest Mediterranean Cities | 0 | - | 4.57 | 86,532 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.63 | 36,807 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.36 | 83,243 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.38 | 69,673 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.28 | 77,993 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.10 | 83,619 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.15 | 65,975 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.23 | 61,743 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.22 | 59,975 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.27 | 67,412 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,309,848 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 349,020 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 125,583 |
| Countries with Megacities | 0 | - | 4.99 | 196,774 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 171,165 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 97,727 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 95,060 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 63,688 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 247,427 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.79 | 99,057 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.44 | 60,315 |
| Biggest English Cities by Century | 0 | - | 4.90 | 99,529 |
| Five Biggest Cities by Country | 0 | - | 4.67 | 152,361 |
| Biggest Cities in the World - 2100 | 0 | - | 4.29 | 81,030 |
| Flags to Largest Cities | 0 | - | 4.54 | 31,873 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,805 |
| Biggest World Cities A-Z | 0 | - | 4.55 | 193,711 |
| Biggest Cities Starting With B | 0 | - | 4.35 | 147,902 |
| Biggest Cities Starting With C | 0 | - | 4.07 | 96,932 |
| Biggest Cities Starting With K | 0 | - | 4.30 | 78,711 |
| Biggest Cities Starting With S | 0 | - | 4.39 | 114,553 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 116,150 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 116,895 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,002 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 244,804 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 108,891 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,880 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 69,063 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 50,433 |
| Biggest European Cities by Letter | 0 | - | 4.65 | 118,584 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.65 | 62,896 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.49 | 55,893 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 40,298 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 33,956 |
| Biggest Cities by Trait #2 | 0 | - | 4.38 | 14,163 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 32,898 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.97 | 77,880 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 61,527 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.46 | 37,766 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.57 | 35,978 |
| Biggest Cities in Japan | 0 | - | 4.66 | 75,277 |
| Biggest Cities in Russia | 0 | - | 4.49 | 76,352 |
| Biggest Cities in France | 0 | - | 4.76 | 199,179 |
| Biggest Cities in Spain | 0 | - | 4.50 | 153,348 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 50,124 |
| Biggest Cities in Poland | 0 | - | 4.56 | 48,021 |
| Biggest Cities in the UK | 0 | - | 4.46 | 93,344 |
| Biggest Cities in China | 0 | - | 4.64 | 138,256 |
| Cities of Ireland | 0 | - | 4.43 | 39,698 |
| Biggest Cities in Canada | 0 | - | 4.66 | 120,321 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 43,531 |
| Biggest Cities in India | 0 | - | 4.72 | 62,333 |
| Biggest Cities in Italy | 0 | - | 4.65 | 216,907 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.29 | 21,409 |
| Biggest U.S. Cities Starting with P | 0 | - | 3.98 | 55,934 |
| Biggest U.S. Cities A-Z | 0 | - | 4.63 | 122,045 |
| Countries of Europe by Population | 0 | - | 4.98 | 126,180 |
| Most Populous Country by First Two Letters | 0 | - | 4.75 | 66,865 |
| Demographics Multiple Choice | 0 | - | 4.66 | 39,739 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 78,573 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 96,404 |
| Countries with the Most People Bordering Them | 0 | - | 4.95 | 75,133 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 93,312 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 69,361 |
| Jewish Cities Quiz | 0 | - | 4.31 | 59,247 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.70 | 56,266 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.71 | 74,474 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 28,395 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.79 | 42,456 |
| Cities in Squares on a Map - North America | 0 | - | 4.36 | 19,347 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 48,333 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.76 | 64,364 |
| All Cities in China with Population of 1 Million | 0 | - | 4.79 | 38,558 |
| All Cities in India with Population of 1 Million | 0 | - | 4.79 | 40,891 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 205,040 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 109,479 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.86 | 68,544 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 76,065 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 53,616 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.92 | 66,878 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 86,851 |
| Countries with the Highest Population Density | 0 | - | 4.93 | 143,643 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 144,228 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 204,883 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 160,672 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 157,133 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.91 | 80,733 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.90 | 84,647 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 145,729 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.97 | 64,307 |
| Biggest Nordic Cities | 0 | - | 4.38 | 59,647 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 29,989 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.46 | 28,697 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.47 | 20,687 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 22,749 |
| Most Populous Countries in 1900 | 0 | - | 4.92 | 161,779 |
| Most Populous Islands | 0 | - | 4.71 | 112,636 |
| Islands by Largest City #1 | 0 | - | 4.48 | 82,034 |
| Countries by Population Decrease | 0 | - | 4.43 | 46,501 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.55 | 49,408 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.97 | 5,478 |
| Largest Cities in Alexander's Empire | 0 | - | 4.56 | 38,604 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.37 | 37,172 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.25 | 91,015 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 52,566 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 24,427 |
| Largest Nordic Cities on a Map | 0 | - | 4.76 | 23,218 |
| Biggest Urban Areas in the UK | 0 | - | 4.40 | 167,671 |
