| Biggest Cities in the World | 0 | - | 4.92 | 790,227 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,631 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,646 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,876 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,835 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,999 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,474 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,505 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,561 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,568 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,045 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,153 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,735 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,666 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,506 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,479 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,748 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,425 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,840 |
| Largest City by Island | 0 | - | 4.87 | 71,028 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,385 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,529 |
| Biggest European Cities by Century | 0 | - | 4.98 | 143,182 |
| Megacities on a World Map | 0 | - | 4.98 | 250,914 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,272 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,173 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,790 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,859 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,709 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,140 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,000 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,819 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,016 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,300 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,561 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,492 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,286 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 94,289 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 97,008 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,053 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 112,465 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,531 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,113 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,445 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,565 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,781 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,255 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,437 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,714 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,766 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,477 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,525 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,905 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,903 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,694 |
| Biggest City by Region | 0 | - | 4.50 | 35,994 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,895 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,647 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,207 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,014 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,219 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,917 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,251 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,233 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,603 |
| Biggest Cities in Europe | 0 | - | 4.70 | 542,110 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,939 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 40,755 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,379 |
| Biggest Cities in History | 0 | - | 4.52 | 89,121 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,117 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,181 |
| Biggest World Cities in 1850 | 0 | - | 4.62 | 68,192 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 35,998 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,275 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,494 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 115,954 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,588 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 121,898 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,158 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 125,983 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,588 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,107 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,028 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,424 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,775 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,904 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,599 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,950 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,742 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,305 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,859 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,471 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,977 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,640 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,665 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,462 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,211 |
| Flags to Largest Cities | 0 | - | 4.55 | 50,772 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,418 |
| All Cities in China with Population of 1 Million | 0 | - | 4.80 | 45,334 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,281 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,393 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 221,339 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,786 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,843 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,146 |
| Bay of Bengal Countries With an Empty Map | 0 | - | 4.64 | 75,208 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,866 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,573 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,121 |
| Countries with Megacities | 0 | - | 4.99 | 246,772 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,043 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,923 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,468 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,814 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 83,993 |
| Biggest Cities Near a Border | 0 | - | 4.21 | 31,746 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,839 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 161,754 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,584 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,624 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,759 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,430 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,383 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,221 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.61 | 65,309 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,644 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,755 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,855 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,470 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,227 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,242 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,698 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,611 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,879 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 40,164 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 31,922 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,786 |
| Biggest Cities in Japan | 0 | - | 4.67 | 82,517 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,017 |
| Biggest Cities in France | 0 | - | 4.69 | 222,012 |
| Biggest Cities in Spain | 0 | - | 4.63 | 169,817 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,647 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,440 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,141 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,550 |
| Biggest Cities in China | 0 | - | 4.53 | 157,000 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,810 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,948 |
| Biggest Cities in India | 0 | - | 4.70 | 67,328 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,424 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,772 |
| UK Rivers Map Quiz | 0 | - | 4.54 | 30,266 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,105 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,817 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,886 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,869 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,465 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,582 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,248 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,644 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,923 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,911 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,716 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,726 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 38,961 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,472 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.15 | 106,479 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,036 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,088 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,370 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,192 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.27 | 73,109 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,315 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,023 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,205 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,132 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,315 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,905 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,387 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,576 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,289 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,450 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 37,992 |
| Biggest Axis-Controlled Cities | 0 | - | 4.43 | 48,596 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,328 |
| Cities of Ireland | 0 | - | 4.51 | 50,324 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,093 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 35,937 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,882 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,451 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,279 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,256 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,599 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,555 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,798 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,206 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,101 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,081 |
