| Biggest Cities in the World | 0 | - | 4.91 | 792,621 |
| Biggest City by Time Zone | 0 | - | 4.88 | 66,988 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,149 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,795 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,240 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 131,145 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,846 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,780 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,894 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,290 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,381 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,915 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,939 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,971 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,733 |
| Biggest Cities in the United States | 0 | - | 4.93 | 969,675 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,412 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,117 |
| Biggest Cities by Language | 0 | - | 4.96 | 244,326 |
| Largest City by Island | 0 | - | 4.87 | 71,261 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,526 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,809 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,740 |
| Megacities on a World Map | 0 | - | 4.98 | 251,792 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 574,582 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,955 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,175 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,242 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,465 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,259 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,897 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,662 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,933 |
| Megacities on an Empty Map | 0 | - | 4.97 | 114,608 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,486 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,638 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,217 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,952 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,936 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,165 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,097 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,953 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,795 |
| Biggest City by Region | 0 | - | 4.50 | 36,039 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,965 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,069 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,259 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,010 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,293 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,095 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,344 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,541 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,665 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,609 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,903 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,045 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,831 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,712 |
| Biggest Cities in Europe | 0 | - | 4.70 | 543,082 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,825 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,632 |
| Biggest Cities in History | 0 | - | 4.52 | 89,267 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,181 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,737 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,785 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,243 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,034 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,266 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,937 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,730 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 116,168 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,821 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,152 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,685 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,193 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,901 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,992 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,700 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,492 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,332 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,904 |
| Countries with Megacities | 0 | - | 4.99 | 248,182 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,793 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,358 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,173 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,295 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,818 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,479 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,014 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 97,499 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,198 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,437,917 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,374 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,184 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,113 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 49,150 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,342 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,801 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,865 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,070 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,912 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,767 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,000 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,655 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,304 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,157 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,573 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,156 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,629 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,956 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,523 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,440 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,534 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,702 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,909 |
| Flags to Largest Cities | 0 | - | 4.54 | 50,946 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,454 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,642 |
| Biggest World Cities A-Z | 0 | - | 4.62 | 222,024 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,864 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,916 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,703 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,131 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,339 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,357 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,891 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,443 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,771 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,678 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,223 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,630 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,786 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,579 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,264 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,665 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,202 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,615 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,786 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,507 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,702 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,831 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,566 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,330 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,590 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,358 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,868 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,956 |
| Biggest Cities in Japan | 0 | - | 4.68 | 82,668 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,113 |
| Biggest Cities in France | 0 | - | 4.69 | 222,811 |
| Biggest Cities in Spain | 0 | - | 4.63 | 170,203 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,735 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,563 |
| Biggest Cities in the UK | 0 | - | 4.47 | 104,362 |
| Biggest Cities in China | 0 | - | 4.53 | 157,431 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,037 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,029 |
| Biggest Cities in India | 0 | - | 4.70 | 67,439 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,936 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,638 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 106,646 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,170 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,213 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,455 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,272 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,185 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,423 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,873 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,770 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,540 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,435 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,800 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,697 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,949 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,415 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,357 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,400 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,126 |
| Boundary Waters | 0 | - | 4.92 | 88,133 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,898 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,498 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,603 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 60,002 |
| Most Populous Islands | 0 | - | 4.79 | 122,103 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,226 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,437 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,424 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,356 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,206 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,175 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,667 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,931 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,639 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,946 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,306 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,067 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,489 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 38,081 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,992 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,989 |
