| Quiz | Points | Best | Rating | Takes |
|---|
| US States Quiz | 0 | - | 5.00 | 12,234,093 |
| Biggest Cities in the United States | 0 | - | 4.93 | 706,817 |
| Canada Provinces and Territories | 0 | - | 4.99 | 251,123 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,165,656 |
| Biggest Urban Areas in the UK | 0 | - | 4.34 | 156,648 |
| Regions of Countries #1 | 0 | - | 4.96 | 137,341 |
| Counties of England Quiz | 0 | - | 4.95 | 574,948 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 287,527 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.54 | 89,744 |
| Biggest English-Speaking Cities | 0 | - | 4.39 | 127,685 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.84 | 99,026 |
| Biggest Cities by Language | 0 | - | 4.95 | 193,644 |
| Biggest Mediterranean Cities | 0 | - | 4.73 | 69,234 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 306,265 |
| Most Populous Islands | 0 | - | 4.63 | 102,655 |
| Biggest Cities in Japan | 0 | - | 4.72 | 66,482 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 132,714 |
| Biggest Cities in Russia | 0 | - | 4.48 | 68,698 |
| States of Mexico | 0 | - | 4.92 | 106,207 |
| Regions of Italy | 0 | - | 4.82 | 48,689 |
| States of India | 0 | - | 4.89 | 117,785 |
| Biggest Cities in Brazil | 0 | - | 4.54 | 41,569 |
| Biggest Cities in Poland | 0 | - | 4.72 | 40,082 |
| Biggest Cities Starting With A | 0 | - | 4.54 | 86,856 |
| Biggest Cities Starting With B | 0 | - | 4.38 | 120,801 |
| Biggest Cities Starting With D | 0 | - | 4.46 | 84,629 |
| Biggest Cities Starting With H | 0 | - | 4.48 | 75,348 |
| Biggest Cities Starting With L | 0 | - | 4.42 | 84,863 |
| Biggest Cities Starting With M | 0 | - | 4.47 | 98,558 |
| Biggest Cities Starting With P | 0 | - | 4.44 | 87,410 |
| Biggest U.S. Cities A-Z | 0 | - | 4.54 | 109,007 |
| Biggest World Cities A-Z | 0 | - | 4.38 | 166,746 |
| Australian States and Territories Quiz | 0 | - | 4.96 | 102,705 |
| Biggest Cities in France | 0 | - | 4.52 | 161,258 |
| Biggest Cities in Spain | 0 | - | 4.64 | 132,640 |
| Biggest Cities in Italy | 0 | - | 4.57 | 188,750 |
| Biggest Cities in California | 0 | - | 4.30 | 119,766 |
| Biggest Cities in the World Quiz | 0 | - | 4.84 | 570,432 |
| Biggest Cities in Africa Quiz | 0 | - | 4.88 | 84,010 |
| Texas Counties | 0 | - | 4.42 | 50,068 |
| Biggest Cities in The Netherlands | 0 | - | 4.42 | 33,657 |
| Biggest Cities in Europe | 0 | - | 4.57 | 403,168 |
| Biggest Cities in Canada | 0 | - | 4.56 | 108,664 |
| Counties of Ireland | 0 | - | 4.86 | 133,008 |
| Biggest Cities in Sweden | 0 | - | 4.71 | 24,534 |
| Provinces of the Netherlands | 0 | - | 4.78 | 27,417 |
| Counties of Wales | 0 | - | 4.58 | 27,184 |
| Countries with the Highest Population Density | 0 | - | 4.88 | 131,233 |
| Biggest Cities in China | 0 | - | 4.42 | 118,031 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 126,459 |
| Biggest Cities in Germany | 0 | - | 4.94 | 226,017 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 134,393 |
| Biggest City in Every Country | 0 | - | 4.97 | 66,734 |
| Biggest Cities in North Carolina | 0 | - | 4.48 | 25,750 |
| Subdivisions by Country | 0 | - | 4.86 | 42,353 |
| Cantons of Switzerland | 0 | - | 4.96 | 31,427 |
| Biggest City by Time Zone | 0 | - | 4.74 | 49,730 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.42 | 78,137 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,504 |
| Biggest Cities in Switzerland | 0 | - | 4.55 | 38,184 |
| Biggest European Cities by Letter | 0 | - | 4.43 | 109,626 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,189 |
| Biggest Cities in India | 0 | - | 4.51 | 54,777 |
| Biggest Cities in Asia | 0 | - | 4.87 | 85,841 |
| Japanese Prefectures | 0 | - | 4.97 | 77,979 |
| Islands by Largest City #1 | 0 | - | 4.44 | 78,281 |
| Biggest City by Island | 0 | - | 4.49 | 42,180 |
| Regions of Countries #2 | 0 | - | 4.94 | 103,546 |
| Regions of Countries #3 | 0 | - | 4.89 | 76,309 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 146,869 |
| Biggest Cities in History | 0 | - | 4.49 | 70,418 |
| Biggest Cities by Trait #1 | 0 | - | 4.44 | 39,797 |
| Hawaiian Islands | 0 | - | 4.74 | 30,471 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,262 |
| New York Counties Quiz | 0 | - | 4.50 | 30,002 |
| Five Biggest Cities by Country | 0 | - | 4.76 | 122,257 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,280 |
| Provinces of China Map Quiz | 0 | - | 4.95 | 75,158 |
| Regions of Spain Quiz | 0 | - | 4.84 | 72,109 |
| Regions of Spain Map Quiz | 0 | - | 4.96 | 151,690 |
| Provinces of China | 0 | - | 4.97 | 117,534 |
| Regions of Italy Map Quiz | 0 | - | 4.95 | 115,583 |
| Territories of the United States | 0 | - | 4.66 | 43,172 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,172 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,145 |
| California Counties Map Quiz | 0 | - | 4.44 | 31,123 |
| States of Brazil | 0 | - | 4.96 | 49,157 |
| U.S. States with the Highest Population Density | 0 | - | 4.46 | 54,896 |
| U.S. States with the Lowest Population Density | 0 | - | 4.90 | 74,479 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.49 | 51,823 |
| Most Populous World Capitals | 0 | - | 4.89 | 127,791 |
| Biggest City by Region | 0 | - | 4.50 | 29,066 |
| Most Populous 2nd Cities | 0 | - | 4.52 | 39,156 |
| Biggest European Cities by Century | 0 | - | 4.96 | 104,967 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 81,652 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 71,875 |
| Capitals of Most Populated Countries | 0 | - | 4.97 | 107,532 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 113,166 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,397 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 54,662 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.91 | 57,506 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 56,870 |
| Regions of Countries #4 | 0 | - | 4.49 | 48,674 |
| Biggest Cities by Latitude | 0 | - | 4.73 | 24,059 |
| Regions of France | 0 | - | 4.66 | 82,236 |
| Parts of the United Kingdom | 0 | - | 4.82 | 74,524 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,100 |
| States of Germany | 0 | - | 4.95 | 97,556 |
| Largest World Cities With Four Letters | 0 | - | 4.41 | 39,330 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,565 |
| Biggest Two-Word Cities | 0 | - | 4.71 | 33,856 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 58,141 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.73 | 55,395 |
| Largest Indonesian Islands | 0 | - | 4.57 | 37,517 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,798 |
| Five Most Populated Cities by Continent | 0 | - | 4.95 | 145,866 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.56 | 68,276 |
| Biggest Cities in the World - Extreme | 0 | - | 4.97 | 72,998 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,302 |
| Countries With More Than 100 Million People | 0 | - | 4.97 | 100,501 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.92 | 118,044 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 123,173 |
| Top 10 Least Populous U.S. States | 0 | - | 4.95 | 146,581 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.90 | 33,827 |
| Biggest Cities with Exceptions | 0 | - | 4.87 | 42,652 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,270 |
| Countries with Megacities | 0 | - | 4.99 | 175,229 |
| Countries of Europe by Population | 0 | - | 4.98 | 108,225 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 167,980 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 126,893 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 123,184 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.89 | 32,377 |
| Biggest Cities in the UK | 0 | - | 4.42 | 79,611 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 81,607 |
| Biggest World Cities in 1850 | 0 | - | 4.52 | 47,494 |
| Megacities on a World Map | 0 | - | 4.97 | 199,124 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 170,750 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.78 | 48,777 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 95,099 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.85 | 73,430 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,601 |
| Most Populous Countries by Year | 0 | - | 4.76 | 78,893 |
| Federal Subjects of Russia | 0 | - | 4.95 | 81,110 |
| Ten Northernmost Megacities | 0 | - | 4.41 | 44,032 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.93 | 74,375 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.42 | 60,581 |
| Provinces of the Philippines | 0 | - | 4.54 | 24,549 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 85,485 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.97 | 52,767 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.98 | 71,937 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 83,477 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 307,102 |
| Countries With More than 50 Million People | 0 | - | 4.98 | 124,798 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.44 | 49,953 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.56 | 34,642 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.44 | 35,862 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 433,326 |
| Megacities on an Empty Map | 0 | - | 4.96 | 77,016 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.97 | 51,901 |
| All 3M Cities on the World Map | 0 | - | 4.94 | 53,702 |
| All Cities in China with Population of 1 Million | 0 | - | 4.66 | 27,423 |
| Northernmost Major City by Country | 0 | - | 4.50 | 28,080 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.92 | 20,805 |
| All Cities in India with Population of 1 Million | 0 | - | 4.80 | 32,306 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.93 | 55,115 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.93 | 78,218 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.46 | 42,326 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 75,887 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 86,916 |
| Most Populous Country by First Two Letters | 0 | - | 4.64 | 60,127 |
| Two Largest Cities by First Two Letters | 0 | - | 4.65 | 56,100 |
| Largest World Capitals with Exceptions | 0 | - | 4.66 | 37,534 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.71 | 61,977 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,439 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,223 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,320 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,858 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 98,860 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,211 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.52 | 43,285 |
| Biggest Cities in Deserts | 0 | - | 4.86 | 37,398 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 260,864 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.93 | 79,373 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.92 | 61,731 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 112,128 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 85,942 |
| Ten Southernmost Megacities | 0 | - | 4.67 | 32,345 |
| Who Controls It? #1 | 0 | - | 4.87 | 41,805 |
| Countries with the Most People Bordering Them | 0 | - | 4.96 | 66,282 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.47 | 39,929 |
| Provinces of Turkey | 0 | - | 4.92 | 147,925 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.92 | 44,816 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.94 | 204,601 |
| 500 Biggest US Cities | 0 | - | 4.90 | 75,622 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.46 | 26,418 |
| All Counties of the United States by Proximity | 0 | - | 4.98 | 216,092 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 54,145 |
| Demographics Multiple Choice | 0 | - | 4.54 | 36,215 |
| Biggest Cities in France - Extreme | 0 | - | 4.84 | 31,737 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.82 | 45,041 |
