| Biggest Cities in the World | 0 | - | 4.91 | 756,419 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 400,867 |
| Biggest Cities in the United States | 0 | - | 4.94 | 921,016 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 354,037 |
| Biggest City by Time Zone | 0 | - | 4.87 | 62,309 |
| Biggest City in Every Country | 0 | - | 4.98 | 91,332 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 190,721 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 103,281 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 111,830 |
| Biggest Cities with Exceptions | 0 | - | 4.88 | 73,990 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.86 | 79,729 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.95 | 73,727 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 45,837 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 65,924 |
| Ten Southernmost Megacities | 0 | - | 4.82 | 49,299 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 62,869 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 553,869 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.88 | 115,470 |
| Biggest Cities by Language | 0 | - | 4.95 | 225,252 |
| Largest City by Island | 0 | - | 4.89 | 67,866 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.92 | 68,184 |
| Most Populous World Capitals | 0 | - | 4.93 | 170,305 |
| Biggest European Cities by Century | 0 | - | 4.98 | 125,809 |
| Megacities on a World Map | 0 | - | 4.98 | 234,245 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 64,568 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 70,361 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 101,308 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 161,788 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 162,860 |
| Biggest Cities in Asia | 0 | - | 4.94 | 104,868 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 47,720 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 328,789 |
| Megacities on an Empty Map | 0 | - | 4.95 | 93,928 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.94 | 47,576 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 66,952 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 71,341 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 214,401 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 130,102 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 108,712 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 153,853 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 42,316 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 112,086 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 75,959 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.92 | 36,546 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.88 | 109,470 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 58,535 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 105,038 |
| Biggest Cities in Europe | 0 | - | 4.74 | 522,963 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 100,388 |
| Biggest Cities by Trait #1 | 0 | - | 4.44 | 44,412 |
| Biggest City by Region | 0 | - | 4.50 | 35,196 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 55,909 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.88 | 54,181 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 98,495 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,334 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 51,634 |
| Two Largest Cities by First Two Letters | 0 | - | 4.54 | 81,377 |
| Biggest Cities in France - Extreme | 0 | - | 4.89 | 52,119 |
| Largest Nordic Cities on a Map | 0 | - | 4.83 | 34,596 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 48,584 |
| Biggest Cities in Germany | 0 | - | 4.95 | 282,065 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.85 | 86,897 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 39,815 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.90 | 90,740 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 45,087 |
| Biggest English-Speaking Cities | 0 | - | 4.43 | 141,123 |
| Biggest Cities in History | 0 | - | 4.50 | 86,360 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 70,982 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.55 | 42,233 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 67,067 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 30,285 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 119,666 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 112,787 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 104,946 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 118,006 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 138,009 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 122,317 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 160,281 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 118,661 |
| Fastest Growing U.S. Cities | 0 | - | 4.37 | 72,109 |
| Second Biggest Cities by Country | 0 | - | 4.36 | 44,493 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,629 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,142 |
| Biggest Cities by Latitude | 0 | - | 4.77 | 27,092 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.75 | 71,775 |
| Biggest Mediterranean Cities | 0 | - | 4.56 | 89,397 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.57 | 39,852 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 136,158 |
| Jewish Cities Quiz | 0 | - | 4.33 | 60,853 |
| Biggest English Cities by Century | 0 | - | 4.89 | 103,689 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,391,859 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 367,013 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 162,203 |
| Countries with Megacities | 0 | - | 4.99 | 221,717 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 188,925 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 107,472 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 128,539 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 74,838 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 296,378 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.47 | 63,282 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 161,307 |
| Biggest Cities in the World - 2100 | 0 | - | 4.23 | 89,136 |
| Flags to Largest Cities | 0 | - | 4.55 | 36,272 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 105,802 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 90,244 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,501 |
| Biggest Cities Starting With B | 0 | - | 4.35 | 157,714 |
| Biggest Cities Starting With C | 0 | - | 4.10 | 101,973 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 84,136 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 122,104 |
| Biggest Cities Starting With T | 0 | - | 4.28 | 123,737 |
| Name a World Capital A-Z | 0 | - | 5.00 | 169,874 |
| Biggest European Cities by Letter | 0 | - | 4.62 | 123,970 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 64,635 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,303 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 81,047 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 42,719 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 35,841 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,339 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.42 | 39,359 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 36,096 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 123,416 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 82,713 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 259,137 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 116,994 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 108,445 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 89,149 |
| Countries by Population Range - Tile Select | 0 | - | 4.86 | 55,611 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 44,682 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 82,120 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 71,496 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 49,850 |
| Biggest Cities by Trait #2 | 0 | - | 4.40 | 14,916 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.58 | 41,087 |
| Biggest Urban Areas in the UK | 0 | - | 4.41 | 173,039 |
| Biggest Cities in Japan | 0 | - | 4.68 | 80,605 |
| Biggest Cities in Russia | 0 | - | 4.48 | 80,393 |
| Biggest Cities in France | 0 | - | 4.70 | 214,864 |
| Biggest Cities in Spain | 0 | - | 4.63 | 164,612 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 54,103 |
| Biggest Cities in Poland | 0 | - | 4.57 | 51,817 |
| Biggest Cities in the UK | 0 | - | 4.47 | 100,747 |
| Biggest Cities in China | 0 | - | 4.47 | 151,069 |
| Cities of Ireland | 0 | - | 4.50 | 48,985 |
| Biggest Cities in Canada | 0 | - | 4.56 | 128,334 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 45,936 |
| Biggest Cities in India | 0 | - | 4.70 | 65,785 |
| Biggest Cities in Italy | 0 | - | 4.70 | 232,419 |
| Countries of Europe by Population | 0 | - | 4.98 | 167,085 |
| Most Populous Countries by Year | 0 | - | 4.81 | 104,122 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 82,146 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 110,330 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 101,989 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 108,373 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 85,826 |
| Biggest Cities Near a Border | 0 | - | 4.21 | 30,929 |
| Cities in Squares on a Map - North America | 0 | - | 4.29 | 20,720 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.35 | 98,179 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.15 | 103,762 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 82,999 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.16 | 78,157 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.37 | 31,960 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.03 | 65,840 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.26 | 71,632 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.32 | 72,812 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 216,108 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 131,047 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.86 | 73,201 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 81,292 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 64,932 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 70,989 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 93,390 |
| Countries with the Most Christians | 0 | - | 4.92 | 135,107 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 82,348 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 160,505 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 164,738 |
| Countries Closest to United States A-Z | 0 | - | 4.83 | 113,726 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 104,934 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 186,016 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 69,712 |
| Demographics Multiple Choice | 0 | - | 4.68 | 41,407 |
| Biggest Nordic Cities | 0 | - | 4.38 | 60,860 |
| U.S. Cities by Hispanic Population | 0 | - | 4.30 | 36,438 |
| Biggest Axis-Controlled Cities | 0 | - | 4.43 | 47,490 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.70 | 58,809 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 77,566 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,268 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.51 | 22,607 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 51,309 |
| Biggest Cities in Mexico | 0 | - | 4.50 | 37,446 |
| All Cities in China with Population of 1 Million | 0 | - | 4.78 | 43,215 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 23,649 |
| Biggest Cities in Washington State | 0 | - | 4.46 | 34,879 |
| Biggest Cities in North Carolina | 0 | - | 4.68 | 34,011 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 222,094 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 174,748 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 171,467 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 99,739 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 105,375 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 154,773 |
