| Biggest Cities in the World | 0 | - | 4.91 | 804,593 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,830 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,787 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,117 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,323 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,533 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,662 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,168 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,207 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,857 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,550 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,613 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 65,133 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,297 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,126 |
| Biggest Cities in the United States | 0 | - | 4.94 | 985,712 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,748 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,403 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,472 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,528 |
| Largest City by Island | 0 | - | 4.87 | 72,374 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,369 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,589 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,064 |
| Megacities on a World Map | 0 | - | 4.98 | 256,577 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,716 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,566 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,991 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,543 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,244 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,897 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,009 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,386 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,095 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,453 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,980 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,275 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,940 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,539 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,584 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,298 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,958 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,916 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,170 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,320 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,367 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,003 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,831 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,030 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,629 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,130 |
| Biggest City by Region | 0 | - | 4.50 | 36,368 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,307 |
| Biggest Cities by Latitude Range | 0 | - | 4.80 | 32,557 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,293 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,429 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,505 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,548 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,096 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,710 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,471 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,254 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,336 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,953 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,750 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,851 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,876 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,693 |
| Biggest Cities in History | 0 | - | 4.52 | 90,526 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,879 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,584 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,101 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,663 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,181 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,495 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,416 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,855 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,954 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,063 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,109 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,889 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,505 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,991 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,642 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,679 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,164 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,132 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,900 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,863 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,974 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,732 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,456 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 67,985 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,547 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,452,760 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,130 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,900 |
| Countries with Megacities | 0 | - | 4.99 | 266,609 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,604 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,976 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,904 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,078 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,952 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,873 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,222 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,074 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,762 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,508 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,470 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,979 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,704 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,745 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,454 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,274 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,768 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,810 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,071 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,917 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,358 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,249 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,848 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,559 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,833 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,119 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,518 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,983 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,560 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,453 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,071 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 91,983 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,149 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,983 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,511 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,152 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,838 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,313 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 49,027 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,718 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,526 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,345 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,352 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,659 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,447 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,721 |
| Biggest Cities in France | 0 | - | 4.70 | 225,131 |
| Biggest Cities in Spain | 0 | - | 4.64 | 172,007 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,238 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,238 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,736 |
| Biggest Cities in China | 0 | - | 4.53 | 159,708 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,417 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,425 |
| Biggest Cities in India | 0 | - | 4.64 | 68,021 |
| Biggest Cities in Italy | 0 | - | 4.77 | 242,196 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,629 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,292 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,992 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,369 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,866 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,219 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,566 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,678 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,806 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,148 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,439 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,495 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,910 |
| Cities in Squares on a Map - North America | 0 | - | 4.31 | 21,568 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,389 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,541 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,484 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,714 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,791 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,840 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,892 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.03 | 67,656 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,655 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,871 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,678 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,814 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,469 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,132 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,476 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,817 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,678 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,477 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,972 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,543 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,794 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,617 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,704 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,559 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,170 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,868 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,526 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,768 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,787 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,909 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,485 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,684 |
