| Biggest Cities in the World | 0 | - | 4.91 | 793,559 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,105 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,309 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 223,131 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,375 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 131,540 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,961 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,893 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 415,177 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,047 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,384 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,467 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,001 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 67,040 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,202 |
| Biggest Cities in the United States | 0 | - | 4.93 | 971,269 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,707 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,391 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,191 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,572 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,911 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,897 |
| Megacities on a World Map | 0 | - | 4.98 | 252,178 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 575,182 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,005 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,314 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,463 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,658 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 343,361 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,372 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,058 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,708 |
| Megacities on an Empty Map | 0 | - | 4.97 | 117,124 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,538 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,676 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,262 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,147 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,065 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,313 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,170 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,975 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,826 |
| Biggest City by Region | 0 | - | 4.50 | 36,057 |
| Most Populous 2nd Cities | 0 | - | 4.77 | 56,988 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,667 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,754 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,724 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,095 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,274 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,058 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,991 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,201 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,004 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,798 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,314 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,229 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,487 |
| Biggest Cities in Europe | 0 | - | 4.70 | 543,472 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,773 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,021 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,143 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,201 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,507 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,743 |
| Biggest Cities in History | 0 | - | 4.52 | 89,335 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,203 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,270 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,298 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,805 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 116,224 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,898 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,223 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,759 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,276 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,934 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,000 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,715 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,505 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,383 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,007 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,680 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,036 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 97,699 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,290 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,378 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,164 |
| Countries with Megacities | 0 | - | 4.99 | 248,707 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,028 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,481 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,397 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,431 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,231 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,146 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 49,268 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,439,321 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,692 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,754 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,813 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,872 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,159 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,963 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,808 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,065 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,744 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,480 |
| Biggest Cities in Latin America | 0 | - | 4.47 | 64,567 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 166,019 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,033 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,553 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,732 |
| Biggest World Cities A-Z | 0 | - | 4.62 | 222,218 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,389 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,246 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,811 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,278 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,055 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,054 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,599 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,383 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,385 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,938 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,903 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,552 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,820 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,708 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,936 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,263 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,692 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,113 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,725 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,724 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,157 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,311 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,799 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,305 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,685 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,865 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,585 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,722 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,186 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,883 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,618 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,364 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,640 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,376 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,904 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,025 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 176,009 |
| Biggest Cities in Japan | 0 | - | 4.69 | 82,730 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,170 |
| Biggest Cities in France | 0 | - | 4.69 | 222,991 |
| Biggest Cities in Spain | 0 | - | 4.64 | 170,371 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,776 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,612 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,438 |
| Biggest Cities in China | 0 | - | 4.53 | 157,650 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,139 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,052 |
| Biggest Cities in India | 0 | - | 4.70 | 67,487 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,132 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,724 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 106,720 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,216 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,271 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,486 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,313 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,240 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,464 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,941 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,923 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,632 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,503 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,866 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,739 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,993 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,501 |
| African Island Countries | 0 | - | 4.96 | 101,107 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,464 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,519 |
| Islands by Country #1 | 0 | - | 4.87 | 174,778 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,028 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,041 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,765 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,882 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,098 |
| Most Populous Islands | 0 | - | 4.79 | 122,175 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,232 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,444 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,639 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,537 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,401 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,305 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,688 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,994 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,767 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,753 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,994 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,413 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,125 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,500 |
