| Biggest Cities in the World | 0 | - | 4.91 | 796,015 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,387 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,764 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 223,901 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,778 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 132,531 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,273 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,119 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 416,159 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,353 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,595 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,707 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,163 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,294 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,712 |
| Biggest Cities in the United States | 0 | - | 4.93 | 974,752 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,345 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,949 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,876 |
| Largest City by Island | 0 | - | 4.87 | 71,596 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,727 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,577 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,175 |
| Megacities on a World Map | 0 | - | 4.98 | 252,983 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 576,578 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,160 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,613 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,052 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,996 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 344,464 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,621 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,519 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,845 |
| Megacities on an Empty Map | 0 | - | 4.97 | 117,991 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,738 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,766 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,365 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,724 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,418 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,808 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,354 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,036 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,903 |
| Biggest City by Region | 0 | - | 4.50 | 36,108 |
| Most Populous 2nd Cities | 0 | - | 4.77 | 57,041 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,946 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,992 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,041 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,140 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,314 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,145 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,175 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,498 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,377 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,995 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,348 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,568 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,801 |
| Biggest Cities in Europe | 0 | - | 4.72 | 545,046 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,914 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,513 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,441 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,210 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,815 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,350 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 151,993 |
| Biggest Cities in History | 0 | - | 4.52 | 89,966 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 73,668 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,338 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,367 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,068 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,417 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,139 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,467 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,056 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,817 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 72,989 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,020 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,747 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,528 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,499 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,504 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,902 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,115 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,201 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,445 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,479 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,779 |
| Countries with Megacities | 0 | - | 4.99 | 249,978 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,631 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,854 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,289 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,938 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,830 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,356 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,220 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 60,454 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,442,383 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,489 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,128 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,855 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,903 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,442 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,133 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,949 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,303 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,004 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,607 |
| Biggest Cities in Latin America | 0 | - | 4.47 | 64,648 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 166,284 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,826 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,953 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 222,614 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,637 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,473 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,260 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,590 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,221 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,293 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,847 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,515 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,431 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 51,135 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,946 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,773 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,895 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,763 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,975 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,325 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,801 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,924 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,293 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,780 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,199 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,460 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,122 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,629 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,910 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,103 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,786 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,769 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,319 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,968 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,716 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,454 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,796 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,423 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,990 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,098 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 176,156 |
| Biggest Cities in Japan | 0 | - | 4.69 | 82,879 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,274 |
| Biggest Cities in France | 0 | - | 4.70 | 223,470 |
| Biggest Cities in Spain | 0 | - | 4.63 | 170,751 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,875 |
| Biggest Cities in Poland | 0 | - | 4.63 | 53,756 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,026 |
| Biggest Cities in China | 0 | - | 4.52 | 158,118 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,619 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,143 |
| Biggest Cities in India | 0 | - | 4.63 | 67,616 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,621 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,949 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,169 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,385 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,437 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,603 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,421 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,362 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,576 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,080 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,657 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,037 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,028 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,234 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,125 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,397 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,023 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,716 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,821 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,096 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,139 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,792 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,988 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,223 |
| Most Populous Islands | 0 | - | 4.80 | 122,744 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,267 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,488 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,287 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,381 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,916 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,551 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,745 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,133 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,986 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.64 | 64,101 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,617 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,275 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,535 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,217 |
