| Biggest Cities in the World | 0 | - | 4.91 | 804,882 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,866 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,839 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,191 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,356 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,669 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,698 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,191 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,337 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,890 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,566 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,638 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 65,154 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,323 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,174 |
| Biggest Cities in the United States | 0 | - | 4.94 | 986,094 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,836 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,499 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,559 |
| Largest City by Island | 0 | - | 4.87 | 72,393 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,385 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,623 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,086 |
| Megacities on a World Map | 0 | - | 4.98 | 256,664 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,556 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,729 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,589 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,093 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,577 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,367 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,918 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,040 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,393 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,117 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,470 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,092 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,130 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,913 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,530 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 144,020 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,671 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,282 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,949 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,596 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,616 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,336 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,053 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,638 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,138 |
| Biggest City by Region | 0 | - | 4.50 | 36,375 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,316 |
| Biggest Cities by Latitude Range | 0 | - | 4.80 | 32,622 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,990 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,943 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,201 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,300 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,430 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,523 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,388 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,389 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,064 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,852 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,556 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,742 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,763 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,473 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,295 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,790 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,883 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,915 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,836 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,488 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,316 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,363 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,027 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,757 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,871 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,743 |
| Biggest Cities in History | 0 | - | 4.52 | 90,546 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,911 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,596 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,673 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,168 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,133 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,902 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,880 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,243 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,511 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,429 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,911 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,973 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,972 |
| Countries with Megacities | 0 | - | 4.99 | 266,758 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,662 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,011 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,976 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,133 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,742 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,461 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 68,083 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,453,116 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,232 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,969 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,078 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.31 | 40,983 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,816 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,116 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,957 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,252 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,778 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,529 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,490 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 224,034 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,387 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,271 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,902 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,587 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,853 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,147 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,543 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,996 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,566 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,475 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,095 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,074 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 92,061 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,155 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,990 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,104 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,518 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,161 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,725 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,313 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,002 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,374 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,877 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,259 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,590 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,695 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,830 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,166 |
| Jewish Cities Quiz | 0 | - | 4.33 | 61,980 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,854 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,323 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 49,037 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,727 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,542 |
| Cities in Squares on a Map - North America | 0 | - | 4.31 | 21,574 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,356 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,358 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,676 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,465 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,730 |
| Biggest Cities in France | 0 | - | 4.70 | 225,185 |
| Biggest Cities in Spain | 0 | - | 4.64 | 172,056 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,252 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,249 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,751 |
| Biggest Cities in China | 0 | - | 4.53 | 159,753 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,432 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,434 |
| Biggest Cities in India | 0 | - | 4.64 | 68,028 |
| Biggest Cities in Italy | 0 | - | 4.77 | 242,249 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,507 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,729 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,797 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,847 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,895 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.03 | 67,662 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,663 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,880 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,566 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,714 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,829 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,481 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,142 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,484 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,836 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,706 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,572 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,833 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,448 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,502 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,915 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,396 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,545 |
| Most Populous Islands | 0 | - | 4.80 | 123,274 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,375 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,635 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,256 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,903 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,590 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,792 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,966 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,802 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,931 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,457 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,508 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,769 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,686 |
