| Biggest Cities in the World | 0 | - | 4.91 | 795,827 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,364 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,730 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 223,854 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,755 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 132,458 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,254 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,106 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,329 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,577 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,683 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,149 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,275 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,683 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 416,073 |
| Biggest Cities in the United States | 0 | - | 4.93 | 974,514 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,309 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,922 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,844 |
| Largest City by Island | 0 | - | 4.87 | 71,579 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,703 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,549 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,162 |
| Megacities on a World Map | 0 | - | 4.98 | 252,931 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 576,496 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,143 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,594 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,013 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,975 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,598 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,458 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,832 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 344,363 |
| Megacities on an Empty Map | 0 | - | 4.97 | 117,942 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,714 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,756 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,355 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,647 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,388 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,745 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,343 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,031 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,897 |
| Biggest City by Region | 0 | - | 4.50 | 36,102 |
| Most Populous 2nd Cities | 0 | - | 4.77 | 57,036 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,137 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,310 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,143 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,345 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,559 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,782 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,931 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,970 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,013 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,155 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,478 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,353 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,976 |
| Biggest Cities in Europe | 0 | - | 4.72 | 544,964 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,255 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 151,981 |
| Biggest Cities in History | 0 | - | 4.52 | 89,957 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,365 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,891 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,480 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,331 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,415 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,362 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,787 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,045 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,402 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,124 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,450 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,036 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,800 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 72,983 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,019 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,744 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,526 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,493 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,738 |
| Countries with Megacities | 0 | - | 4.99 | 249,897 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,576 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,822 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,891 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,816 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,480 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,886 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,105 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,164 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,437 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,442,160 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,435 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,351 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,216 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 56,561 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,471 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,848 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,903 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,424 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,119 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,939 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,287 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,990 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,607 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,452 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,227 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,561 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,205 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,280 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,833 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,601 |
| Biggest Cities in Latin America | 0 | - | 4.47 | 64,642 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,121 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 166,270 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,201 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,808 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,940 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 222,586 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 51,121 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,975 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,776 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,199 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,504 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,429 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,940 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,757 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,887 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,759 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,321 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,797 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,875 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,268 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,450 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,103 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,611 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,901 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,085 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,772 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,766 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,954 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,712 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,448 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,785 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,418 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,985 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 176,146 |
| Biggest Cities in Japan | 0 | - | 4.69 | 82,872 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,266 |
| Biggest Cities in France | 0 | - | 4.70 | 223,435 |
| Biggest Cities in Spain | 0 | - | 4.63 | 170,732 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,866 |
| Biggest Cities in Poland | 0 | - | 4.63 | 53,748 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,019 |
| Biggest Cities in China | 0 | - | 4.52 | 158,089 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,603 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,140 |
| Biggest Cities in India | 0 | - | 4.63 | 67,608 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,585 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,931 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,156 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,377 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,429 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,596 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,418 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,355 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,568 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,068 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,631 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,029 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,018 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,152 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,116 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,385 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,012 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,697 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,805 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,313 |
| Boundary Waters | 0 | - | 4.92 | 88,343 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,052 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,837 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 62,068 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,287 |
| Most Populous Islands | 0 | - | 4.80 | 122,735 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,266 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,488 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,240 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,338 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,862 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,526 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,742 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,125 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,971 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.64 | 64,093 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,604 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,267 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,533 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,211 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,091 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,134 |
