| Biggest Cities in the World | 0 | - | 4.91 | 799,877 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,147 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,828 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,522 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,563 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 134,359 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,988 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,660 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,116 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 59,992 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,184 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,701 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,767 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,766 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 418,244 |
| Biggest Cities in the United States | 0 | - | 4.94 | 979,660 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,451 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,864 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,748 |
| Largest City by Island | 0 | - | 4.87 | 71,972 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,075 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,078 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,645 |
| Megacities on a World Map | 0 | - | 4.98 | 254,963 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 578,806 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,437 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,067 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,918 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,539 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,400 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,178 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.93 | 50,156 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 346,207 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,548 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,103 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,951 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,576 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,579 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,953 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,532 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,657 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,413 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,021 |
| Biggest City by Region | 0 | - | 4.50 | 36,253 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,170 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,209 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,366 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,323 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,435 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,295 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,295 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,433 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,430 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,582 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 82,483 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,932 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,250 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,378 |
| Biggest Cities in Europe | 0 | - | 4.73 | 546,788 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,939 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 162,471 |
| Biggest Cities in History | 0 | - | 4.52 | 90,231 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 77,761 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,249 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,320 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,446 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,863 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,502 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,748 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,449 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,716 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,502 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,070 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,502 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,196 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,070 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,082 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,835 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,563 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,670 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,694 |
| Countries with Megacities | 0 | - | 4.99 | 264,064 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,534 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,372 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,800 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,426 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,269 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,150 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,239 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,954 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,598 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,446,946 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,666 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,531 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,328 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 66,507 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,601 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,972 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,937 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,861 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,375 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,169 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,688 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,353 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,963 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,815 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,012 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,014 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,486 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,635 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,153 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,831 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,779 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,400 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,710 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,459 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,159 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,215 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,197 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 63,949 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,042 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,882 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,273 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,715 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,490 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,002 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 89,794 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,015 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,868 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,427 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,958 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,134 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,759 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,660 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,569 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,012 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,248 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,417 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,939 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,838 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,137 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,871 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,581 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 44,200 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,477 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,142 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,220 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,373 |
| Biggest Cities in Japan | 0 | - | 4.69 | 83,167 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,462 |
| Biggest Cities in France | 0 | - | 4.70 | 224,194 |
| Biggest Cities in Spain | 0 | - | 4.63 | 171,296 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,038 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,962 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,334 |
| Biggest Cities in China | 0 | - | 4.53 | 158,825 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,949 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,252 |
| Biggest Cities in India | 0 | - | 4.64 | 67,796 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,274 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,199 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,428 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,567 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,620 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,750 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,531 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,502 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,717 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,303 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,105 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,401 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,255 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,827 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,290 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,595 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,329 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,068 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,232 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,575 |
| Boundary Waters | 0 | - | 4.92 | 88,515 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,209 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,183 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,578 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,529 |
| Most Populous Islands | 0 | - | 4.80 | 122,977 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,313 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,549 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,092 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,019 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,484 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,150 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,851 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,496 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,391 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,257 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,057 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,473 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,604 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,354 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,248 |
