| All 1M Cities by Proximity | 0 | - | 5.00 | 509,327 |
| Biggest Cities in the World | 0 | - | 4.89 | 679,628 |
| Biggest City by Time Zone | 0 | - | 4.84 | 53,549 |
| Biggest City in Every Country | 0 | - | 4.97 | 77,742 |
| Five Most Populated Cities by Continent | 0 | - | 4.95 | 167,647 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 90,988 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 94,711 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 63,358 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.85 | 70,360 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 367,755 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.94 | 64,364 |
| Biggest Cities in Deserts | 0 | - | 4.93 | 42,059 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 59,131 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 46,024 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 54,499 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 105,134 |
| Biggest Cities in the United States | 0 | - | 4.93 | 809,351 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 321,066 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 197,619 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 108,449 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 301,753 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.89 | 96,303 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 108,235 |
| Biggest Cities by Language | 0 | - | 4.95 | 212,549 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 64,530 |
| Most Populous World Capitals | 0 | - | 4.92 | 146,814 |
| Biggest European Cities by Century | 0 | - | 4.97 | 117,808 |
| Megacities on a World Map | 0 | - | 4.98 | 219,245 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 59,465 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 62,813 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 83,156 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 150,177 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 153,830 |
| Biggest Cities in Asia | 0 | - | 4.94 | 95,101 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.91 | 43,007 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 90,484 |
| Megacities on an Empty Map | 0 | - | 4.96 | 86,901 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 41,192 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 111,252 |
| Biggest Cities Starting With D | 0 | - | 4.48 | 106,301 |
| Biggest Cities Starting With H | 0 | - | 4.53 | 96,878 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 109,720 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 127,711 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 113,922 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 63,166 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 67,166 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.93 | 130,839 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.82 | 43,697 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.90 | 90,953 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 68,970 |
| 500 Biggest US Cities | 0 | - | 4.85 | 96,495 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.48 | 97,338 |
| Biggest Cities by Trait #1 | 0 | - | 4.44 | 42,904 |
| Biggest City by Region | 0 | - | 4.49 | 33,448 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 53,089 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,237 |
| Two Largest Cities by First Two Letters | 0 | - | 4.59 | 68,748 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 46,843 |
| Biggest Cities in Europe | 0 | - | 4.75 | 458,725 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 50,583 |
| Biggest Cities in France - Extreme | 0 | - | 4.88 | 43,060 |
| Biggest Cities in Germany | 0 | - | 4.95 | 261,080 |
| Biggest Cities Starting With B | 0 | - | 4.35 | 147,067 |
| Biggest Cities Starting With C | 0 | - | 4.07 | 96,269 |
| Biggest Cities Starting With K | 0 | - | 4.29 | 78,309 |
| Biggest Cities Starting With S | 0 | - | 4.39 | 113,946 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 115,496 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.90 | 28,434 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 136,282 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.95 | 108,923 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.97 | 63,871 |
| Biggest English-Speaking Cities | 0 | - | 4.42 | 135,753 |
| Biggest City by Island | 0 | - | 4.57 | 45,622 |
| Biggest Cities in History | 0 | - | 4.49 | 79,553 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 67,714 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.50 | 39,908 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.80 | 51,834 |
| Biggest World Cities in 1850 | 0 | - | 4.58 | 64,325 |
| Biggest Cities in Sweden | 0 | - | 4.83 | 37,036 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 74,840 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 69,957 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 38,861 |
| Biggest Coastal City by Country | 0 | - | 4.59 | 26,973 |
| Biggest City by Region #2 | 0 | - | 4.45 | 23,007 |
| Biggest Cities by Latitude | 0 | - | 4.76 | 26,147 |
| Northernmost Major City by Country | 0 | - | 4.55 | 30,700 |
| Cities of China (With Some Help) | 0 | - | 4.86 | 28,014 |
| Largest World Cities With Four Letters | 0 | - | 4.41 | 43,067 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.79 | 68,392 |
| Biggest Mediterranean Cities | 0 | - | 4.57 | 86,301 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.64 | 36,524 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,303,056 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 347,709 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 124,313 |
| Countries with Megacities | 0 | - | 4.99 | 194,987 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,644 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 96,957 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 93,824 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,806 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 245,323 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.79 | 98,545 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.44 | 60,042 |
| Biggest English Cities by Century | 0 | - | 4.89 | 99,051 |
| Five Biggest Cities by Country | 0 | - | 4.66 | 151,211 |
| Biggest Cities in the World - 2100 | 0 | - | 4.29 | 80,300 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,751 |
| Biggest World Cities A-Z | 0 | - | 4.55 | 192,416 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 116,348 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 65,424 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 243,598 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 108,293 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,523 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 64,480 |
| Countries by Population Range - Tile Select | 0 | - | 4.86 | 50,057 |
| Biggest European Cities by Letter | 0 | - | 4.65 | 118,143 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.64 | 62,747 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.49 | 55,562 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.24 | 89,417 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 40,087 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 33,803 |
| Biggest Cities by Trait #2 | 0 | - | 4.37 | 14,087 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 32,584 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.96 | 70,325 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.43 | 61,310 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.46 | 37,651 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.57 | 35,557 |
| Biggest Cities in Japan | 0 | - | 4.66 | 74,944 |
| Biggest Cities in Russia | 0 | - | 4.49 | 75,963 |
| Biggest Cities in France | 0 | - | 4.76 | 197,812 |
| Biggest Cities in Spain | 0 | - | 4.50 | 152,385 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 49,747 |
| Biggest Cities in Poland | 0 | - | 4.56 | 47,706 |
| Biggest Cities in the UK | 0 | - | 4.45 | 92,677 |
| Biggest Cities in China | 0 | - | 4.64 | 137,145 |
| Cities of Ireland | 0 | - | 4.43 | 39,474 |
| Biggest Cities in Canada | 0 | - | 4.67 | 119,662 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 43,293 |
| Biggest Cities in India | 0 | - | 4.72 | 61,993 |
| Biggest Cities in Italy | 0 | - | 4.66 | 215,578 |
| Biggest U.S. Cities A-Z | 0 | - | 4.59 | 121,723 |
| Countries of Europe by Population | 0 | - | 4.98 | 124,762 |
| Most Populous Country by First Two Letters | 0 | - | 4.72 | 66,500 |
| Demographics Multiple Choice | 0 | - | 4.66 | 39,580 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 78,300 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 95,732 |
| Countries with the Most People Bordering Them | 0 | - | 4.95 | 74,553 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 92,697 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 64,516 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 85,534 |
| Jewish Cities Quiz | 0 | - | 4.31 | 59,103 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.70 | 56,032 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.71 | 74,179 |
| Biggest Cities Near a Border | 0 | - | 4.20 | 27,950 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.79 | 42,379 |
| Flags to Largest Cities | 0 | - | 4.57 | 30,855 |
| Cities in Squares on a Map - North America | 0 | - | 4.36 | 19,213 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 48,081 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.76 | 63,566 |
| All Cities in China with Population of 1 Million | 0 | - | 4.77 | 37,907 |
| All Cities in India with Population of 1 Million | 0 | - | 4.79 | 40,512 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.36 | 82,898 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.36 | 69,379 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.28 | 77,698 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.10 | 83,347 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.15 | 65,786 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.23 | 61,537 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.22 | 59,802 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.27 | 67,214 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 204,122 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 108,907 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.85 | 68,235 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 75,692 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 53,363 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.92 | 66,605 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 86,341 |
| Countries with the Highest Population Density | 0 | - | 4.93 | 142,902 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 139,278 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 203,591 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 159,555 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 156,134 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.90 | 79,997 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.90 | 84,202 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 144,987 |
| Biggest Nordic Cities | 0 | - | 4.37 | 59,538 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.37 | 29,858 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.45 | 28,603 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.47 | 20,552 |
| Cities on Interstate 90 on a Map | 0 | - | 4.40 | 25,065 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 22,665 |
| Most Populous Countries in 1900 | 0 | - | 4.92 | 161,211 |
| Most Populous Islands | 0 | - | 4.71 | 112,094 |
| Islands by Largest City #1 | 0 | - | 4.48 | 81,953 |
| Countries by Population Decrease | 0 | - | 4.43 | 46,295 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.55 | 49,071 |
| Largest Cities in Alexander's Empire | 0 | - | 4.56 | 38,513 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.37 | 36,871 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 52,399 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 24,333 |
| Largest Nordic Cities on a Map | 0 | - | 4.72 | 22,874 |
| Biggest Urban Areas in the UK | 0 | - | 4.40 | 167,185 |
