| Biggest Cities in the World | 0 | - | 4.91 | 795,137 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,296 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,615 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 223,641 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,640 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 132,199 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,181 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,054 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 415,815 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,255 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,534 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,636 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,121 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,214 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,541 |
| Biggest Cities in the United States | 0 | - | 4.93 | 973,564 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,122 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,775 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,726 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,662 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,472 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,088 |
| Megacities on a World Map | 0 | - | 4.98 | 252,674 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 576,094 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,095 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,524 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,861 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,901 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 344,071 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,543 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,342 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,794 |
| Megacities on an Empty Map | 0 | - | 4.97 | 117,791 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,654 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,734 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,338 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,453 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,293 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,581 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,299 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,017 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,878 |
| Biggest City by Region | 0 | - | 4.50 | 36,088 |
| Most Populous 2nd Cities | 0 | - | 4.77 | 57,021 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,856 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,915 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,920 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,129 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,304 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,123 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,108 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,415 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,266 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,940 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,334 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,451 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,687 |
| Biggest Cities in Europe | 0 | - | 4.72 | 544,552 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,863 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,343 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,341 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,629 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,807 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 151,923 |
| Biggest Cities in History | 0 | - | 4.52 | 89,906 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,246 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,313 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,343 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,975 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,355 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,064 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,394 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,963 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,682 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 72,969 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,014 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,733 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,518 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,459 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,329 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,823 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,084 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,020 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,409 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,449 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,575 |
| Countries with Megacities | 0 | - | 4.99 | 249,575 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,423 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,724 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,766 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,691 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,305 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,199 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 49,429 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,441,342 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,216 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,089 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,838 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,888 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,347 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,074 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,902 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,222 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,917 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,577 |
| Biggest Cities in Latin America | 0 | - | 4.47 | 64,623 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,188 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,148 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,737 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,877 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 222,468 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,524 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,384 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,109 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,480 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,168 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,206 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,762 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,468 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,418 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 51,066 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,930 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,710 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,869 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,742 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,967 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,305 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,774 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,675 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,125 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,758 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,185 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,400 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,015 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,532 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,838 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,012 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,719 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,755 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,286 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,930 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,695 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,419 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,747 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,404 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,969 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,069 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 176,106 |
| Biggest Cities in Japan | 0 | - | 4.69 | 82,835 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,235 |
| Biggest Cities in France | 0 | - | 4.70 | 223,293 |
| Biggest Cities in Spain | 0 | - | 4.64 | 170,623 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,840 |
| Biggest Cities in Poland | 0 | - | 4.63 | 53,716 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,967 |
| Biggest Cities in China | 0 | - | 4.52 | 157,923 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,534 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,118 |
| Biggest Cities in India | 0 | - | 4.70 | 67,577 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,469 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,876 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,041 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,324 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,383 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,556 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,390 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,318 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,538 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,043 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,187 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,957 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 75,967 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 91,594 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,066 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,337 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,942 |
| African Island Countries | 0 | - | 4.96 | 101,282 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,636 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,729 |
| Islands by Country #1 | 0 | - | 4.87 | 174,942 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,075 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,101 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,784 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,960 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,182 |
| Most Populous Islands | 0 | - | 4.80 | 122,689 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,260 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,480 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,078 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,111 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,710 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,477 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,724 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,088 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,793 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,904 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,065 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,544 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,234 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,524 |
