| All 1M Cities by Proximity | 0 | - | 5.00 | 572,884 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,746 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,748 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,568 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,548 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,697 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,771 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,815 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,409 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,455 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,414 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,492 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 52,990 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,101 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,685 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,617 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,448 |
| Biggest Cities in the United States | 0 | - | 4.93 | 965,773 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,600 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,307 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,762 |
| Largest City by Island | 0 | - | 4.87 | 70,986 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,334 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,457 |
| Biggest European Cities by Century | 0 | - | 4.98 | 141,229 |
| Megacities on a World Map | 0 | - | 4.98 | 250,716 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,798 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,575 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,071 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,791 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,909 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,189 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,531 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,422 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,257 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,167 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,506 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,072 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,349 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,507 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,721 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,861 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,889 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,669 |
| Biggest City by Region | 0 | - | 4.50 | 35,982 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,881 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,187 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,399 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,193 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,002 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,211 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,897 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,646 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,690 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,385 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,479 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,243 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,518 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,882 |
| Biggest Cities in Europe | 0 | - | 4.70 | 541,824 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,629 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 124,118 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,780 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,063 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,343 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,314 |
| Biggest Cities in History | 0 | - | 4.52 | 89,079 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,099 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,174 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,447 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 115,917 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,543 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 121,851 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,090 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 125,941 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,842 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,971 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,659 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,460 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,185 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 94,210 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,927 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 96,939 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,025 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,265 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,960 |
| Countries with Megacities | 0 | - | 4.99 | 246,410 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,874 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,775 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,327 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,731 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,085 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,009 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,846 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,139 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,397 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,564 |
| Biggest Cities Near a Border | 0 | - | 4.21 | 31,738 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,837 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 161,702 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,551 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,594 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,705 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,391 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,271 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,459 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,595 |
| Flags to Largest Cities | 0 | - | 4.55 | 50,744 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,240 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,350 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 221,274 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,057 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,763 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,783 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,800 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,428 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,530 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,192 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,198 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.61 | 65,300 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,581 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,845 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,174 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,674 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,595 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,868 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 40,159 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,525 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,856 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,112 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,642 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,076 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,103 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,227 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,825 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,338 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,515 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,246 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,631 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 83,961 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,735 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,448 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,213 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,397 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,320 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,749 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 31,911 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,747 |
| Biggest Cities in Japan | 0 | - | 4.67 | 82,487 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,000 |
| Biggest Cities in France | 0 | - | 4.69 | 221,915 |
| Biggest Cities in Spain | 0 | - | 4.63 | 169,736 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,619 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,421 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,095 |
| Biggest Cities in China | 0 | - | 4.53 | 156,899 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,759 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,939 |
| Biggest Cities in India | 0 | - | 4.70 | 67,302 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,341 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,421 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.15 | 106,438 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,009 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,066 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,355 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,173 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.27 | 73,090 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,296 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,738 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,373 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,217 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,202 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,553 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,518 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,751 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,149 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,050 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,020 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,905 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,889 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,710 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,703 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 38,943 |
| All Cities in China with Population of 1 Million | 0 | - | 4.80 | 45,305 |
| Most Populous Islands | 0 | - | 4.78 | 121,935 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,194 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,399 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,801 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,888 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,746 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,937 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,595 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,787 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,316 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,827 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,101 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,889 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,438 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 37,974 |
| Biggest Axis-Controlled Cities | 0 | - | 4.43 | 48,580 |
