| Biggest Cities in the World | 0 | - | 4.91 | 792,036 |
| Biggest City by Time Zone | 0 | - | 4.88 | 66,913 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,042 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,566 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,144 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 130,882 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,780 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,716 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,812 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,234 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,320 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,868 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 66,879 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,781 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,394 |
| Biggest Cities in the United States | 0 | - | 4.93 | 968,750 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,261 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,947 |
| Biggest Cities by Language | 0 | - | 4.96 | 242,837 |
| Largest City by Island | 0 | - | 4.87 | 71,193 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,488 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,729 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,597 |
| Megacities on a World Map | 0 | - | 4.98 | 251,535 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 574,192 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,916 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,047 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,106 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,377 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,207 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,753 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,640 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,708 |
| Megacities on an Empty Map | 0 | - | 4.96 | 109,412 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,421 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,602 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,190 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,805 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,813 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,055 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,041 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,939 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,774 |
| Biggest City by Region | 0 | - | 4.50 | 36,028 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,940 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,059 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,248 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,974 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,285 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,024 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,252 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,471 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,581 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,518 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,848 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,977 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,730 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,651 |
| Biggest Cities in Europe | 0 | - | 4.70 | 542,819 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,406 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,573 |
| Biggest Cities in History | 0 | - | 4.52 | 89,231 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,169 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,719 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,588 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,238 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,989 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,237 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,747 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,673 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 116,119 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,759 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,085 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,539 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,143 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,890 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,989 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,695 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,485 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,296 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,758 |
| Countries with Megacities | 0 | - | 4.99 | 247,888 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,636 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,268 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,021 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,220 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,701 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,993 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 97,357 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,139 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,437,164 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,160 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,168 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,091 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 49,087 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,321 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,789 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,862 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 161,988 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,860 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,729 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,928 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,596 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,249 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,102 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,384 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,098 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,591 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,878 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,463 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,401 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,522 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,675 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,845 |
| Flags to Largest Cities | 0 | - | 4.54 | 50,905 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,415 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,605 |
| Biggest World Cities A-Z | 0 | - | 4.62 | 221,799 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,823 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,908 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,693 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,127 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,313 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,340 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,882 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,390 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,754 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,659 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,202 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,613 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,536 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,498 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,238 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,576 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,134 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,554 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,746 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,379 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,685 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,813 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,542 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,302 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,558 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,350 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,846 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,910 |
| Biggest Cities in Japan | 0 | - | 4.68 | 82,635 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,089 |
| Biggest Cities in France | 0 | - | 4.69 | 222,713 |
| Biggest Cities in Spain | 0 | - | 4.63 | 170,106 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,716 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,534 |
| Biggest Cities in the UK | 0 | - | 4.47 | 104,309 |
| Biggest Cities in China | 0 | - | 4.53 | 157,315 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,984 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,010 |
| Biggest Cities in India | 0 | - | 4.70 | 67,401 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,818 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,591 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 106,609 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,138 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,183 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,439 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,255 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,170 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,402 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,847 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,685 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,470 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,399 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,755 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,667 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,923 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,369 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,299 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,331 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,096 |
| Boundary Waters | 0 | - | 4.92 | 88,115 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,881 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,447 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,522 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,957 |
| Most Populous Islands | 0 | - | 4.79 | 122,073 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,220 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,429 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,294 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,245 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,086 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,115 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,655 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,903 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,580 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,915 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,265 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,031 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,476 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 38,063 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,974 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,970 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,752 |
