| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,280 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,947 |
| Biggest Cities in the World | 0 | - | 4.91 | 804,739 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,281 |
| Biggest Cities in the United States | 0 | - | 4.94 | 985,932 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,808 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,847 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,814 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,149 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,344 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,613 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,681 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,180 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,874 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,559 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,627 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 65,146 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,313 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,142 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,498 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,486 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,549 |
| Largest City by Island | 0 | - | 4.87 | 72,382 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,375 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,614 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,074 |
| Megacities on a World Map | 0 | - | 4.98 | 256,622 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,721 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,576 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,030 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,563 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,906 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,024 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,391 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,314 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,106 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,463 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,570 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,599 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,323 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,979 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,931 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,185 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,355 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,379 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,039 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,842 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,758 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,042 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,631 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,136 |
| Biggest City by Region | 0 | - | 4.50 | 36,372 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,311 |
| Biggest Cities by Latitude Range | 0 | - | 4.80 | 32,602 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,480 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,288 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,296 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,429 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,516 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,348 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,553 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,991 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,753 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,200 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,505 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,421 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,879 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,968 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,497 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,720 |
| Biggest Cities in History | 0 | - | 4.52 | 90,540 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,892 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,467 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,587 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,667 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,079 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,121 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,904 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,520 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 144,003 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,662 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,869 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,898 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,798 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,166 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,133 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,902 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,737 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,458 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,871 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 68,028 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,954 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,452,931 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,181 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,938 |
| Countries with Megacities | 0 | - | 4.99 | 266,691 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,642 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,995 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,948 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,112 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,107 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,956 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,085 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,078 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,768 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,517 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,483 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.31 | 40,981 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 224,009 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,729 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,756 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,466 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,288 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,781 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,814 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,991 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,565 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,073 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 92,036 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,153 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,988 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,517 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,159 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,374 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,259 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,880 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,575 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,846 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,132 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,524 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,847 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,321 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 49,031 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,722 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,102 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,533 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,349 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,354 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,668 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,457 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,727 |
| Biggest Cities in France | 0 | - | 4.70 | 225,162 |
| Biggest Cities in Spain | 0 | - | 4.64 | 172,021 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,245 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,247 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,745 |
| Biggest Cities in China | 0 | - | 4.53 | 159,732 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,425 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,426 |
| Biggest Cities in India | 0 | - | 4.64 | 68,024 |
| Biggest Cities in Italy | 0 | - | 4.77 | 242,220 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,554 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,686 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,305 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,874 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,240 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,580 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,686 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,818 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,161 |
| Jewish Cities Quiz | 0 | - | 4.33 | 61,978 |
| Cities in Squares on a Map - North America | 0 | - | 4.31 | 21,571 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,497 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,718 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,794 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,845 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,894 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.03 | 67,659 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,660 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,875 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,697 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,822 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,474 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,139 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,482 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,832 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,692 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,334,692 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,560 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,810 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,997 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,370 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,686 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,520 |
| Biggest Axis-Controlled Cities | 0 | - | 4.44 | 49,009 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,446 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,499 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,912 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,728 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,392 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,545 |
| Cities of Ireland | 0 | - | 4.51 | 50,880 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,253 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,425 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,229 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,210 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,887 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,569 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,778 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,795 |
