| Biggest Cities in the World | 0 | - | 4.91 | 791,562 |
| Biggest City by Time Zone | 0 | - | 4.88 | 66,845 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,915 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,371 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,073 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 130,674 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,698 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,654 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,103 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,897 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,750 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,170 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,275 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,832 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 66,816 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,703 |
| Biggest Cities in the United States | 0 | - | 4.93 | 968,131 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,150 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,386 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,570 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,816 |
| Biggest Cities by Language | 0 | - | 4.96 | 240,238 |
| Largest City by Island | 0 | - | 4.87 | 71,147 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,452 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,681 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,407 |
| Megacities on a World Map | 0 | - | 4.98 | 251,348 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,884 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,976 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,504 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,013 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,314 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,171 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,640 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,615 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,661 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,385 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,817 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,583 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,165 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,412 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,698 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,545 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,735 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,453 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,817 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,930 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,957 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,662 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,614 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,566 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 106,578 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,116 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,162 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,423 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,247 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,157 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,380 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,971 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,200 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,004 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,698 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,493 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,934 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,605 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,607 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,979 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 97,266 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,110 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,516 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,007 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,660 |
| Countries with Megacities | 0 | - | 4.99 | 247,652 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,509 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,221 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,905 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,150 |
| Biggest Cities in Europe | 0 | - | 4.70 | 542,607 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,011 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,926 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,658 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,754 |
| Biggest City by Region | 0 | - | 4.50 | 36,021 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,929 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,051 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,244 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,957 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,275 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,312 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,211 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,038 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,384 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,302 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,418 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,047 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,570 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,832 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,210 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,511 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,088 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,513 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,709 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,359 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,423 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,523 |
| Biggest Cities in History | 0 | - | 4.52 | 89,206 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,160 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,225 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,244 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,157 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,065 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.41 | 23,566 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 49,040 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,220 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,611 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 116,060 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,698 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,006 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,290 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,086 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,634 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,432 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,371 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,721 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,648 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,905 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,332 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,249 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,266 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,179 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,175 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,008 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,080 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,878 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,534 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,016 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,229 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,377 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,882 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,507 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,280 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,986 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,332 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,793 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,685 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,480 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 84,070 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,874 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,342 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,735 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,647 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,272 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,192 |
| Flags to Largest Cities | 0 | - | 4.55 | 50,869 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,603 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 221,537 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,696 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 192,683 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 233,365 |
| U.S. Map with Random Merged States | 0 | - | 4.94 | 300,252 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,687 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,117 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,010 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,561 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,857 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,672 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,787 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,802 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,533 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,289 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,958 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,954 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,777 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,899 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,744 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,522 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,826 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 31,961 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,869 |
| Biggest Cities in Japan | 0 | - | 4.68 | 82,609 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,074 |
| Biggest Cities in France | 0 | - | 4.69 | 222,609 |
| Biggest Cities in Spain | 0 | - | 4.63 | 170,047 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,702 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,781 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,507 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,014 |
| Biggest Cities in the UK | 0 | - | 4.47 | 104,262 |
| Biggest Cities in China | 0 | - | 4.53 | 157,232 |
| All Cities in China with Population of 1 Million | 0 | - | 4.80 | 45,387 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,942 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,000 |
| Biggest Cities in India | 0 | - | 4.70 | 67,388 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,716 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,859 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 161,909 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,805 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,691 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,865 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,535 |
