| Biggest Cities in the World | 0 | - | 4.91 | 792,442 |
| Biggest City by Time Zone | 0 | - | 4.88 | 66,973 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,114 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,730 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,216 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 131,062 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,826 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,760 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,646 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,872 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,276 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,367 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,896 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,916 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,879 |
| Biggest Cities in the United States | 0 | - | 4.93 | 969,457 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,370 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,063 |
| Biggest Cities by Language | 0 | - | 4.96 | 244,081 |
| Largest City by Island | 0 | - | 4.87 | 71,240 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,515 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,790 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,696 |
| Megacities on a World Map | 0 | - | 4.98 | 251,713 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 574,488 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,941 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,142 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,205 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,441 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,876 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,250 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,866 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,654 |
| Megacities on an Empty Map | 0 | - | 4.97 | 113,927 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,468 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,630 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,213 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,911 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,900 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,135 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,080 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,947 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,785 |
| Biggest City by Region | 0 | - | 4.50 | 36,036 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,959 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,521 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,641 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,588 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,066 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,256 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,002 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,888 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,026 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,805 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,692 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,290 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,075 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,319 |
| Biggest Cities in Europe | 0 | - | 4.70 | 543,027 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,734 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,726 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,026 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,893 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,694 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,621 |
| Biggest Cities in History | 0 | - | 4.52 | 89,257 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,179 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,242 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,254 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,714 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 116,159 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,805 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,132 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,667 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,185 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,897 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,989 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,699 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,490 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,321 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,792 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,458 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,010 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 97,458 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,178 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,336 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,864 |
| Countries with Megacities | 0 | - | 4.99 | 248,100 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,740 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,325 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,128 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,273 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,179 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,108 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 49,133 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,437,684 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,314 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,692 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,798 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,865 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,037 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,893 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,760 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,975 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,640 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,450 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,428 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,530 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,891 |
| Flags to Largest Cities | 0 | - | 4.54 | 50,932 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,445 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,631 |
| Biggest World Cities A-Z | 0 | - | 4.62 | 221,989 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,286 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,137 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,513 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,138 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,618 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,932 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,504 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,330 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,354 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,854 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,890 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,427 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,766 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,673 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,913 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,214 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,628 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,706 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,557 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,700 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,130 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,258 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,636 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,179 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,608 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,776 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,470 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,697 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,120 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,828 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,558 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,319 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,582 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,355 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,864 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 31,984 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,938 |
| Biggest Cities in Japan | 0 | - | 4.68 | 82,657 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,105 |
| Biggest Cities in France | 0 | - | 4.69 | 222,776 |
| Biggest Cities in Spain | 0 | - | 4.63 | 170,186 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,731 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,550 |
| Biggest Cities in the UK | 0 | - | 4.47 | 104,344 |
| Biggest Cities in China | 0 | - | 4.52 | 157,391 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,022 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,028 |
| Biggest Cities in India | 0 | - | 4.70 | 67,429 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,913 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,621 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 106,634 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,161 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,205 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,450 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,268 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,181 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,415 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,864 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,747 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,523 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,424 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,787 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,690 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,943 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,397 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,341 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,375 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,991 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,984 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,753 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,822 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,046 |
| Most Populous Islands | 0 | - | 4.79 | 122,090 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,225 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,434 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,383 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,322 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,170 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,163 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,664 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,924 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,621 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,941 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,293 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,061 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,484 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 38,079 |
