| Biggest Cities in the World | 0 | - | 4.91 | 801,189 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,332 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,107 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,997 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,802 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 140,463 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,197 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,804 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,352 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,204 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,313 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,853 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,935 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,190 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 418,864 |
| Biggest Cities in the United States | 0 | - | 4.94 | 981,389 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,835 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,101 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,021 |
| Largest City by Island | 0 | - | 4.87 | 72,086 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,182 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,236 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,798 |
| Megacities on a World Map | 0 | - | 4.98 | 255,420 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 579,558 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,526 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,211 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,275 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 168,734 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,577 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,400 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,228 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 346,861 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,746 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,206 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,016 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,646 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,867 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,126 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,743 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,762 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,570 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,055 |
| Biggest City by Region | 0 | - | 4.50 | 36,290 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,201 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,231 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,382 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,365 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,460 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,445 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,456 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,570 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,578 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,769 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 83,161 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,069 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,494 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,512 |
| Biggest Cities in Europe | 0 | - | 4.73 | 547,323 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,805 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 164,933 |
| Biggest Cities in History | 0 | - | 4.52 | 90,314 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,204 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,312 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,586 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,492 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,993 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,549 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,071 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,648 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,549 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,793 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,589 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,194 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,627 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,312 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,091 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,098 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,853 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,574 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,735 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,975 |
| Countries with Megacities | 0 | - | 4.99 | 264,736 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,815 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,515 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,070 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,589 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,583 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,254 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,289 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,223 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,669 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,448,667 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,079 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,589 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,370 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 66,972 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,004 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,948 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,992 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,453 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,224 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,870 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,459 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,087 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,968 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,256 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,197 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,591 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,767 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,244 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 107,914 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,827 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,490 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,851 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,534 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,250 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,282 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,431 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,154 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 75,785 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,061 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,912 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,306 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,790 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,513 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,030 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 90,652 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,061 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,897 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,450 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,022 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,537 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,898 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,716 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,760 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,177 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,351 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,512 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,996 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,873 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,197 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,920 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,627 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 44,292 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,499 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 37,213 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,259 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,458 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,247 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,546 |
| Biggest Cities in France | 0 | - | 4.70 | 224,453 |
| Biggest Cities in Spain | 0 | - | 4.63 | 171,499 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,090 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,031 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,458 |
| Biggest Cities in China | 0 | - | 4.53 | 159,094 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,094 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,308 |
| Biggest Cities in India | 0 | - | 4.64 | 67,863 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,539 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,271 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,504 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,625 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,686 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,790 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,571 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,534 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,760 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,379 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,261 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,528 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,314 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,937 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,352 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,651 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,425 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,222 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,389 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,653 |
| Boundary Waters | 0 | - | 4.92 | 88,593 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,268 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,299 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,771 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,642 |
| Most Populous Islands | 0 | - | 4.80 | 123,068 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,327 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,573 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,386 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,272 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,692 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,371 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,878 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,587 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,551 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,325 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,176 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,537 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,629 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,404 |
