| Biggest Cities in the World | 0 | - | 4.91 | 792,931 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,026 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,199 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,888 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,278 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 131,278 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,884 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,817 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,941 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,332 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,408 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,942 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,972 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,089 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,884 |
| Biggest Cities in the United States | 0 | - | 4.93 | 970,233 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,505 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,189 |
| Biggest Cities by Language | 0 | - | 4.96 | 244,644 |
| Largest City by Island | 0 | - | 4.87 | 71,295 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,536 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,839 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,794 |
| Megacities on a World Map | 0 | - | 4.98 | 251,930 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 574,777 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,969 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,229 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,337 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,537 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,301 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,951 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,673 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 343,041 |
| Megacities on an Empty Map | 0 | - | 4.97 | 116,033 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,500 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 68,651 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,231 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,012 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,986 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,214 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,962 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,804 |
| Biggest City by Region | 0 | - | 4.50 | 36,044 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,975 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,079 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,265 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,027 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,300 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,136 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,396 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,582 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,697 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,657 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,931 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,118 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,893 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,746 |
| Biggest Cities in Europe | 0 | - | 4.70 | 543,212 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,045 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,673 |
| Biggest Cities in History | 0 | - | 4.52 | 89,291 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,188 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,745 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,882 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,249 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,081 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,276 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,015 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,750 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 116,181 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,840 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,171 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,704 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,213 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,911 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,995 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,706 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,496 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,353 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,981 |
| Countries with Megacities | 0 | - | 4.99 | 248,365 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,874 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,395 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,265 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,329 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,874 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,564 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,017 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 97,561 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,236 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,438,363 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,478 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,200 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,126 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 49,201 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,360 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,805 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,867 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,094 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,925 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,775 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,016 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,681 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,340 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,189 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,648 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,192 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,658 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,991 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,548 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,455 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,544 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,716 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,949 |
| Flags to Largest Cities | 0 | - | 4.54 | 50,972 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,493 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,670 |
| Biggest World Cities A-Z | 0 | - | 4.62 | 222,080 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,889 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,927 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,711 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,141 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,354 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,367 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,895 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,486 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,782 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,692 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,235 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,658 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,901 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,631 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,277 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,704 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,236 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,646 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,812 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,534 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,706 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,850 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,581 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,336 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,607 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,364 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 36,881 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 31,997 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,976 |
| Biggest Cities in Japan | 0 | - | 4.68 | 82,689 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,135 |
| Biggest Cities in France | 0 | - | 4.69 | 222,876 |
| Biggest Cities in Spain | 0 | - | 4.64 | 170,273 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,749 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,574 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,391 |
| Biggest Cities in China | 0 | - | 4.52 | 157,491 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,075 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,034 |
| Biggest Cities in India | 0 | - | 4.70 | 67,452 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,005 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,665 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 106,668 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,184 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,228 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,462 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,285 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,205 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,434 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,897 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,818 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,560 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,461 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,824 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,714 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,964 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,439 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,395 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,437 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,148 |
| Boundary Waters | 0 | - | 4.92 | 88,151 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,908 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,533 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,637 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 60,028 |
| Most Populous Islands | 0 | - | 4.79 | 122,131 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,228 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,441 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,496 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,413 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,281 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,227 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,670 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,961 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,672 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,965 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,332 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,086 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,491 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 38,098 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,000 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,001 |
