| Quiz | Points | Best | Rating | Takes |
|---|
| Biggest Cities in the United States | 0 | - | 4.92 | 708,036 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,167,231 |
| Biggest Urban Areas in the UK | 0 | - | 4.34 | 156,748 |
| Island Countries Quiz | 0 | - | 4.99 | 576,894 |
| World's Biggest Islands Quiz | 0 | - | 4.15 | 116,276 |
| Islands by Country #1 | 0 | - | 4.86 | 149,401 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 287,880 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.55 | 89,874 |
| Biggest English-Speaking Cities | 0 | - | 4.39 | 127,784 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.84 | 99,127 |
| Biggest Cities by Language | 0 | - | 4.95 | 194,100 |
| Biggest Mediterranean Cities | 0 | - | 4.73 | 69,302 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 306,659 |
| Most Populous Islands | 0 | - | 4.64 | 102,742 |
| Biggest Cities in Japan | 0 | - | 4.68 | 66,573 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 132,863 |
| Biggest Cities in Russia | 0 | - | 4.49 | 68,787 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 41,674 |
| Biggest Cities in Poland | 0 | - | 4.73 | 40,173 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 87,003 |
| Biggest Cities Starting With B | 0 | - | 4.38 | 120,928 |
| Biggest Cities Starting With D | 0 | - | 4.46 | 84,730 |
| Biggest Cities Starting With H | 0 | - | 4.48 | 75,488 |
| Biggest Cities Starting With L | 0 | - | 4.42 | 84,983 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 98,738 |
| Biggest Cities Starting With P | 0 | - | 4.44 | 87,552 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 21,023 |
| Biggest U.S. Cities A-Z | 0 | - | 4.54 | 109,122 |
| Biggest World Cities A-Z | 0 | - | 4.39 | 166,958 |
| Biggest Cities in France | 0 | - | 4.52 | 161,521 |
| Biggest Cities in Spain | 0 | - | 4.65 | 132,858 |
| Biggest Cities in Italy | 0 | - | 4.63 | 189,026 |
| Biggest Cities in California | 0 | - | 4.30 | 119,893 |
| Biggest Cities in the World Quiz | 0 | - | 4.84 | 571,363 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 19,875 |
| Biggest Cities in Africa Quiz | 0 | - | 4.88 | 84,132 |
| Biggest Cities in The Netherlands | 0 | - | 4.42 | 34,193 |
| Biggest Cities in Europe | 0 | - | 4.63 | 403,681 |
| Biggest Cities in Canada | 0 | - | 4.57 | 108,786 |
| Biggest Cities in Sweden | 0 | - | 4.71 | 24,592 |
| Countries with the Highest Population Density | 0 | - | 4.88 | 131,365 |
| Biggest Cities in China | 0 | - | 4.43 | 118,243 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 126,619 |
| Biggest Cities in Germany | 0 | - | 4.94 | 226,530 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 134,888 |
| Biggest City in Every Country | 0 | - | 4.97 | 66,824 |
| Biggest Cities in North Carolina | 0 | - | 4.48 | 25,791 |
| Biggest City by Time Zone | 0 | - | 4.74 | 49,785 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.42 | 78,189 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,709 |
| Biggest Cities in Switzerland | 0 | - | 4.55 | 38,267 |
| Biggest European Cities by Letter | 0 | - | 4.43 | 109,706 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,390 |
| Biggest Cities in India | 0 | - | 4.52 | 54,865 |
| Biggest Cities in Asia | 0 | - | 4.87 | 85,947 |
| Biggest City by Island | 0 | - | 4.49 | 42,223 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 147,054 |
| Biggest Cities in History | 0 | - | 4.49 | 70,587 |
| Biggest Cities by Trait #1 | 0 | - | 4.44 | 39,853 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,352 |
| Islands A-Z | 0 | - | 4.41 | 91,264 |
| Five Biggest Cities by Country | 0 | - | 4.76 | 122,431 |
| Islands by Country #2 | 0 | - | 4.67 | 63,017 |
| Asian Islands | 0 | - | 4.42 | 18,176 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,375 |
| Islands by Shape #2 | 0 | - | 4.81 | 40,247 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,221 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,194 |
| Biggest Coastal City by Country | 0 | - | 4.56 | 24,088 |
| U.S. States with the Highest Population Density | 0 | - | 4.46 | 54,946 |
| U.S. States with the Lowest Population Density | 0 | - | 4.90 | 74,564 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.55 | 57,809 |
| Most Populous World Capitals | 0 | - | 4.89 | 128,146 |
| Biggest City by Region | 0 | - | 4.50 | 29,150 |
| Largest Islands of Greece | 0 | - | 4.52 | 25,580 |
| Most Populous 2nd Cities | 0 | - | 4.53 | 39,246 |
| Biggest City by Region #2 | 0 | - | 4.44 | 19,845 |
| Biggest European Cities by Century | 0 | - | 4.96 | 105,122 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 81,762 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 71,962 |
| Capitals of Most Populated Countries | 0 | - | 4.97 | 107,644 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 113,297 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,653 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 54,753 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.91 | 57,622 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 56,959 |
| Islands by Largest City #2 | 0 | - | 4.56 | 23,894 |
| Biggest Cities by Latitude | 0 | - | 4.73 | 24,091 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,206 |
| Largest World Cities With Four Letters | 0 | - | 4.41 | 39,386 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,651 |
| Biggest Two-Word Cities | 0 | - | 4.71 | 33,935 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 58,253 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.73 | 55,507 |
| Largest Indonesian Islands | 0 | - | 4.53 | 38,080 |
| Largest Philippines Islands | 0 | - | 4.59 | 16,670 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,848 |
| Five Most Populated Cities by Continent | 0 | - | 4.95 | 146,110 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.57 | 68,350 |
| Biggest Cities in the World - Extreme | 0 | - | 4.97 | 73,110 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,350 |
| Countries With More Than 100 Million People | 0 | - | 4.97 | 100,646 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 118,375 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.93 | 118,221 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 123,299 |
| Top 10 Least Populous U.S. States | 0 | - | 4.95 | 146,721 |
| Cities of China (With Some Help) | 0 | - | 4.77 | 23,550 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.90 | 33,943 |
| Biggest Cities with Exceptions | 0 | - | 4.87 | 42,743 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,583 |
| Countries with Megacities | 0 | - | 4.99 | 175,928 |
| Countries of Europe by Population | 0 | - | 4.98 | 108,408 |
| Countries with Multiple Big Islands | 0 | - | 4.91 | 97,613 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 168,247 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 127,067 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 123,373 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.89 | 32,437 |
| Biggest Cities in the UK | 0 | - | 4.42 | 79,753 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 81,737 |
| Biggest World Cities in 1850 | 0 | - | 4.52 | 47,558 |
| Megacities on a World Map | 0 | - | 4.97 | 199,605 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 174,047 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.78 | 48,832 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 95,399 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.85 | 73,611 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,679 |
| Most Populous Countries by Year | 0 | - | 4.77 | 79,058 |
| Ten Northernmost Megacities | 0 | - | 4.41 | 44,070 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.93 | 74,558 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.42 | 60,632 |
| East Asian Islands on the Map | 0 | - | 4.49 | 27,543 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 85,610 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.97 | 52,942 |
| Largest World's Islands on the World Map | 0 | - | 4.57 | 121,945 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.98 | 72,061 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.85 | 125,007 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 83,615 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 311,983 |
| Countries With More than 50 Million People | 0 | - | 4.98 | 124,945 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.44 | 50,021 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.57 | 34,687 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.44 | 35,920 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 434,213 |
| Megacities on an Empty Map | 0 | - | 4.96 | 77,149 |
| Largest Islands in the British Isles With a Map | 0 | - | 4.54 | 25,886 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.97 | 51,990 |
| All 3M Cities on the World Map | 0 | - | 4.94 | 53,878 |
| African Island Countries | 0 | - | 4.95 | 80,461 |
| Asian Island Nations | 0 | - | 4.65 | 69,259 |
| All Cities in China with Population of 1 Million | 0 | - | 4.66 | 27,576 |
| Northernmost Major City by Country | 0 | - | 4.50 | 28,113 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.93 | 20,959 |
| All Cities in India with Population of 1 Million | 0 | - | 4.80 | 32,740 |
| Countries with Multiple Populous Islands | 0 | - | 4.78 | 70,886 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.93 | 55,246 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.93 | 78,366 |
| Richest Island Countries | 0 | - | 4.77 | 66,318 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.46 | 42,414 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 75,994 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 87,026 |
| Most Populous Country by First Two Letters | 0 | - | 4.64 | 60,213 |
| Two Largest Cities by First Two Letters | 0 | - | 4.65 | 56,188 |
| Islands by Satellite Image #1 | 0 | - | 4.66 | 52,060 |
| Largest World Capitals with Exceptions | 0 | - | 4.66 | 37,703 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.71 | 62,045 |
| Most Populous Islands of Europe | 0 | - | 4.42 | 20,326 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,519 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,305 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,387 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,932 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 99,058 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,271 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.53 | 43,352 |
| Biggest Cities in Deserts | 0 | - | 4.86 | 37,486 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 261,458 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.93 | 79,578 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.92 | 61,821 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 112,296 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 86,057 |
| Ten Southernmost Megacities | 0 | - | 4.68 | 32,400 |
| Countries with the Most People Bordering Them | 0 | - | 4.96 | 66,398 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.47 | 39,983 |
| People Born on Islands | 0 | - | 4.41 | 37,108 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.92 | 44,900 |
| Flags to Largest Cities | 0 | - | 4.55 | 23,014 |
| 500 Biggest US Cities | 0 | - | 4.88 | 75,873 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.46 | 26,446 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 54,286 |
| Demographics Multiple Choice | 0 | - | 4.55 | 36,263 |
| Biggest Cities in France - Extreme | 0 | - | 4.84 | 31,876 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.82 | 45,211 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 51,046 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 49,314 |
| Densest Countries Bordering Each Other | 0 | - | 4.88 | 57,511 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 83,433 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 66,997 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.58 | 21,678 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.58 | 27,462 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.82 | 41,974 |
| Biggest Cities in Australia on a Map | 0 | - | 4.58 | 27,096 |
