| Quiz | Points | Best | Rating | Takes |
|---|
| US States Quiz | 0 | - | 5.00 | 12,303,783 |
| Biggest Cities in the United States | 0 | - | 4.93 | 709,621 |
| Canada Provinces and Territories | 0 | - | 4.99 | 252,059 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,169,157 |
| Biggest Urban Areas in the UK | 0 | - | 4.34 | 156,874 |
| Regions of Countries #1 | 0 | - | 4.96 | 137,881 |
| Counties of England Quiz | 0 | - | 4.95 | 577,893 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 288,369 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.55 | 90,016 |
| Biggest English-Speaking Cities | 0 | - | 4.39 | 127,862 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.84 | 99,233 |
| Biggest Cities by Language | 0 | - | 4.95 | 194,340 |
| Biggest Mediterranean Cities | 0 | - | 4.67 | 69,391 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 307,043 |
| Most Populous Islands | 0 | - | 4.64 | 102,841 |
| Biggest Cities in Japan | 0 | - | 4.68 | 66,728 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 133,061 |
| Biggest Cities in Russia | 0 | - | 4.49 | 68,884 |
| States of Mexico | 0 | - | 4.92 | 106,960 |
| Regions of Italy | 0 | - | 4.84 | 49,006 |
| States of India | 0 | - | 4.91 | 118,895 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 41,794 |
| Biggest Cities in Poland | 0 | - | 4.72 | 40,290 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 87,161 |
| Biggest Cities Starting With B | 0 | - | 4.38 | 121,113 |
| Biggest Cities Starting With D | 0 | - | 4.46 | 84,859 |
| Biggest Cities Starting With H | 0 | - | 4.48 | 75,827 |
| Biggest Cities Starting With L | 0 | - | 4.42 | 85,142 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 98,937 |
| Biggest Cities Starting With P | 0 | - | 4.44 | 87,719 |
| Biggest U.S. Cities A-Z | 0 | - | 4.55 | 109,305 |
| Biggest World Cities A-Z | 0 | - | 4.39 | 167,245 |
| Australian States and Territories Quiz | 0 | - | 4.96 | 103,071 |
| Biggest Cities in France | 0 | - | 4.53 | 161,906 |
| Biggest Cities in Spain | 0 | - | 4.66 | 133,192 |
| Biggest Cities in Italy | 0 | - | 4.64 | 189,481 |
| Biggest Cities in California | 0 | - | 4.30 | 120,033 |
| Biggest Cities in the World Quiz | 0 | - | 4.82 | 572,674 |
| Biggest Cities in Africa Quiz | 0 | - | 4.88 | 84,238 |
| Texas Counties | 0 | - | 4.42 | 50,365 |
| Biggest Cities in The Netherlands | 0 | - | 4.43 | 36,482 |
| Biggest Cities in Europe | 0 | - | 4.64 | 404,357 |
| Biggest Cities in Canada | 0 | - | 4.57 | 108,957 |
| Counties of Ireland | 0 | - | 4.86 | 133,671 |
| Provinces of the Netherlands | 0 | - | 4.77 | 27,572 |
| Counties of Wales | 0 | - | 4.58 | 27,358 |
| Countries with the Highest Population Density | 0 | - | 4.88 | 131,527 |
| Biggest Cities in China | 0 | - | 4.46 | 118,506 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 126,836 |
| Biggest Cities in Germany | 0 | - | 4.94 | 227,075 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 135,090 |
| Biggest City in Every Country | 0 | - | 4.97 | 66,941 |
| Biggest Cities in North Carolina | 0 | - | 4.48 | 25,850 |
| Subdivisions by Country | 0 | - | 4.86 | 42,476 |
| Cantons of Switzerland | 0 | - | 4.96 | 31,633 |
| Biggest City by Time Zone | 0 | - | 4.74 | 49,836 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.42 | 78,251 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,904 |
| Biggest Cities in Switzerland | 0 | - | 4.56 | 38,367 |
| Biggest European Cities by Letter | 0 | - | 4.43 | 110,090 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,625 |
| Biggest Cities in India | 0 | - | 4.52 | 54,976 |
| Biggest Cities in Asia | 0 | - | 4.87 | 86,079 |
| Japanese Prefectures | 0 | - | 4.97 | 78,693 |
| Islands by Largest City #1 | 0 | - | 4.46 | 78,400 |
| Biggest City by Island | 0 | - | 4.49 | 42,288 |
| Regions of Countries #2 | 0 | - | 4.94 | 103,858 |
| Regions of Countries #3 | 0 | - | 4.89 | 76,553 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 147,264 |
| Biggest Cities in History | 0 | - | 4.47 | 70,739 |
| Biggest Cities by Trait #1 | 0 | - | 4.44 | 39,913 |
| Hawaiian Islands | 0 | - | 4.74 | 30,571 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,459 |
| New York Counties Quiz | 0 | - | 4.50 | 30,249 |
| Five Biggest Cities by Country | 0 | - | 4.77 | 122,645 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,480 |
| Colorado Counties Quiz | 0 | - | 5.00 | 15,141 |
| Provinces of China Map Quiz | 0 | - | 4.95 | 75,391 |
| Regions of Spain Quiz | 0 | - | 4.84 | 72,601 |
| Regions of Spain Map Quiz | 0 | - | 4.96 | 152,097 |
| Provinces of China | 0 | - | 4.97 | 118,450 |
| Regions of Italy Map Quiz | 0 | - | 4.95 | 115,993 |
| Territories of the United States | 0 | - | 4.67 | 43,367 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,299 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,279 |
| California Counties Map Quiz | 0 | - | 4.44 | 31,166 |
| States of Brazil | 0 | - | 4.96 | 49,604 |
| U.S. States with the Highest Population Density | 0 | - | 4.46 | 55,014 |
| U.S. States with the Lowest Population Density | 0 | - | 4.90 | 74,679 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.53 | 58,817 |
| Most Populous World Capitals | 0 | - | 4.89 | 128,317 |
| Biggest City by Region | 0 | - | 4.50 | 29,224 |
| Most Populous 2nd Cities | 0 | - | 4.53 | 39,331 |
| Biggest European Cities by Century | 0 | - | 4.96 | 105,319 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 81,894 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 72,101 |
| Capitals of Most Populated Countries | 0 | - | 4.97 | 107,783 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 113,446 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,945 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 54,865 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.91 | 57,727 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 57,074 |
| Regions of Countries #4 | 0 | - | 4.49 | 48,838 |
| Regions of France | 0 | - | 4.68 | 82,698 |
| Parts of the United Kingdom | 0 | - | 4.81 | 74,733 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,341 |
| States of Germany | 0 | - | 4.95 | 98,399 |
| Largest World Cities With Four Letters | 0 | - | 4.41 | 39,449 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,745 |
| Biggest Two-Word Cities | 0 | - | 4.73 | 34,036 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 58,389 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.74 | 55,631 |
| Largest Indonesian Islands | 0 | - | 4.53 | 38,269 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,899 |
| Five Most Populated Cities by Continent | 0 | - | 4.95 | 146,464 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.58 | 68,457 |
| Biggest Cities in the World - Extreme | 0 | - | 4.97 | 73,253 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,421 |
| Countries With More Than 100 Million People | 0 | - | 4.97 | 100,812 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.93 | 118,422 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 123,496 |
| Top 10 Least Populous U.S. States | 0 | - | 4.95 | 146,920 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.91 | 34,046 |
| Biggest Cities with Exceptions | 0 | - | 4.88 | 42,822 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,955 |
| Countries with Megacities | 0 | - | 4.99 | 176,308 |
| Countries of Europe by Population | 0 | - | 4.98 | 108,614 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 168,615 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 127,503 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 123,629 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.89 | 32,497 |
| Biggest Cities in the UK | 0 | - | 4.42 | 79,933 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 81,898 |
| Biggest World Cities in 1850 | 0 | - | 4.53 | 47,643 |
| Megacities on a World Map | 0 | - | 4.97 | 199,991 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 174,865 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.78 | 48,897 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 95,593 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.85 | 73,772 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,753 |
| Most Populous Countries by Year | 0 | - | 4.78 | 79,415 |
| Federal Subjects of Russia | 0 | - | 4.95 | 81,805 |
| Ten Northernmost Megacities | 0 | - | 4.41 | 44,140 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 74,687 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.42 | 60,688 |
| Provinces of the Philippines | 0 | - | 4.54 | 24,900 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 85,760 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.97 | 53,118 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.98 | 72,190 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 83,781 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 313,283 |
| Countries With More than 50 Million People | 0 | - | 4.98 | 125,114 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.44 | 50,118 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.57 | 34,752 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.44 | 35,975 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 435,198 |
| Megacities on an Empty Map | 0 | - | 4.96 | 77,309 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 52,121 |
| All 3M Cities on the World Map | 0 | - | 4.94 | 54,084 |
| All Cities in China with Population of 1 Million | 0 | - | 4.64 | 29,101 |
| Northernmost Major City by Country | 0 | - | 4.50 | 28,154 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.93 | 21,206 |
| All Cities in India with Population of 1 Million | 0 | - | 4.79 | 32,911 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.93 | 55,395 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.94 | 78,556 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.46 | 42,528 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 76,107 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 87,193 |
| Most Populous Country by First Two Letters | 0 | - | 4.64 | 60,318 |
| Two Largest Cities by First Two Letters | 0 | - | 4.65 | 56,285 |
| Largest World Capitals with Exceptions | 0 | - | 4.67 | 37,857 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.72 | 62,151 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,614 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,401 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,474 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 48,028 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 99,235 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,342 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.53 | 43,412 |
| Biggest Cities in Deserts | 0 | - | 4.86 | 37,547 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 262,017 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.92 | 79,809 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.92 | 61,915 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 112,469 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 86,216 |
| Ten Southernmost Megacities | 0 | - | 4.80 | 40,081 |
| Who Controls It? #1 | 0 | - | 4.87 | 41,901 |
| Countries with the Most People Bordering Them | 0 | - | 4.96 | 66,517 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.47 | 40,162 |
| Provinces of Turkey | 0 | - | 4.93 | 148,939 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.92 | 45,015 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.95 | 205,981 |
| 500 Biggest US Cities | 0 | - | 4.88 | 76,228 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.46 | 26,474 |
| All Counties of the United States by Proximity | 0 | - | 4.98 | 217,534 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 54,460 |
| Demographics Multiple Choice | 0 | - | 4.55 | 36,317 |
| Biggest Cities in France - Extreme | 0 | - | 4.84 | 32,012 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.82 | 45,435 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.90 | 51,344 |
