| Quiz | Points | Best | Rating | Takes |
|---|
| Biggest Cities in the United States | 0 | - | 4.92 | 708,994 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,168,403 |
| Biggest Urban Areas in the UK | 0 | - | 4.34 | 156,831 |
| Island Countries Quiz | 0 | - | 4.99 | 577,447 |
| World's Biggest Islands Quiz | 0 | - | 4.15 | 116,307 |
| Islands by Country #1 | 0 | - | 4.86 | 149,524 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 288,170 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.55 | 89,954 |
| Biggest English-Speaking Cities | 0 | - | 4.39 | 127,832 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.84 | 99,187 |
| Biggest Cities by Language | 0 | - | 4.95 | 194,232 |
| Biggest Mediterranean Cities | 0 | - | 4.73 | 69,359 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 306,896 |
| Most Populous Islands | 0 | - | 4.64 | 102,806 |
| Biggest Cities in Japan | 0 | - | 4.68 | 66,647 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 132,994 |
| Biggest Cities in Russia | 0 | - | 4.48 | 68,851 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 41,752 |
| Biggest Cities in Poland | 0 | - | 4.73 | 40,241 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 87,107 |
| Biggest Cities Starting With B | 0 | - | 4.38 | 121,054 |
| Biggest Cities Starting With D | 0 | - | 4.46 | 84,821 |
| Biggest Cities Starting With H | 0 | - | 4.48 | 75,792 |
| Biggest Cities Starting With L | 0 | - | 4.42 | 85,089 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 98,857 |
| Biggest Cities Starting With P | 0 | - | 4.44 | 87,664 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 21,069 |
| Biggest U.S. Cities A-Z | 0 | - | 4.54 | 109,213 |
| Biggest World Cities A-Z | 0 | - | 4.39 | 167,122 |
| Biggest Cities in France | 0 | - | 4.52 | 161,761 |
| Biggest Cities in Spain | 0 | - | 4.65 | 133,056 |
| Biggest Cities in Italy | 0 | - | 4.63 | 189,297 |
| Biggest Cities in California | 0 | - | 4.30 | 119,991 |
| Biggest Cities in the World Quiz | 0 | - | 4.84 | 572,106 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 19,911 |
| Biggest Cities in Africa Quiz | 0 | - | 4.88 | 84,190 |
| Biggest Cities in Europe | 0 | - | 4.63 | 404,084 |
| Biggest Cities in Canada | 0 | - | 4.57 | 108,880 |
| Biggest Cities in Sweden | 0 | - | 4.71 | 24,640 |
| Countries with the Highest Population Density | 0 | - | 4.88 | 131,456 |
| Biggest Cities in China | 0 | - | 4.42 | 118,388 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 126,717 |
| Biggest Cities in Germany | 0 | - | 4.94 | 226,873 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 135,006 |
| Biggest City in Every Country | 0 | - | 4.97 | 66,883 |
| Biggest Cities in North Carolina | 0 | - | 4.48 | 25,827 |
| Biggest City by Time Zone | 0 | - | 4.74 | 49,817 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.42 | 78,232 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,812 |
| Biggest Cities in Switzerland | 0 | - | 4.56 | 38,337 |
| Biggest European Cities by Letter | 0 | - | 4.43 | 109,966 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,528 |
| Biggest Cities in India | 0 | - | 4.52 | 54,934 |
| Biggest Cities in Asia | 0 | - | 4.87 | 86,033 |
| Islands by Largest City #1 | 0 | - | 4.45 | 78,374 |
| Biggest City by Island | 0 | - | 4.49 | 42,265 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 147,174 |
| Biggest Cities in History | 0 | - | 4.47 | 70,692 |
| Biggest Cities by Trait #1 | 0 | - | 4.44 | 39,886 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,423 |
| Islands A-Z | 0 | - | 4.41 | 91,535 |
| Five Biggest Cities by Country | 0 | - | 4.76 | 122,558 |
| Islands by Country #2 | 0 | - | 4.67 | 63,071 |
| Asian Islands | 0 | - | 4.42 | 18,196 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,449 |
| Islands by Shape #2 | 0 | - | 4.81 | 40,289 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,268 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,239 |
| Biggest Coastal City by Country | 0 | - | 4.56 | 24,119 |
| U.S. States with the Highest Population Density | 0 | - | 4.46 | 54,995 |
| U.S. States with the Lowest Population Density | 0 | - | 4.90 | 74,627 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.57 | 58,692 |
| Most Populous World Capitals | 0 | - | 4.89 | 128,264 |
| Biggest City by Region | 0 | - | 4.50 | 29,189 |
| Largest Islands of Greece | 0 | - | 4.52 | 25,737 |
| Most Populous 2nd Cities | 0 | - | 4.53 | 39,291 |
| Biggest City by Region #2 | 0 | - | 4.44 | 19,885 |
| Biggest European Cities by Century | 0 | - | 4.96 | 105,248 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 81,844 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 72,047 |
| Capitals of Most Populated Countries | 0 | - | 4.97 | 107,727 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 113,397 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,837 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 54,826 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.91 | 57,687 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 57,036 |
| Islands by Largest City #2 | 0 | - | 4.54 | 23,920 |
| Biggest Cities by Latitude | 0 | - | 4.73 | 24,117 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,279 |
| Largest World Cities With Four Letters | 0 | - | 4.41 | 39,416 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,707 |
| Biggest Two-Word Cities | 0 | - | 4.71 | 34,004 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 58,340 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.73 | 55,571 |
| Largest Indonesian Islands | 0 | - | 4.53 | 38,218 |
| Largest Philippines Islands | 0 | - | 4.59 | 16,701 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,875 |
| Five Most Populated Cities by Continent | 0 | - | 4.95 | 146,341 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.57 | 68,420 |
| Biggest Cities in the World - Extreme | 0 | - | 4.97 | 73,198 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,396 |
| Countries With More Than 100 Million People | 0 | - | 4.97 | 100,754 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 118,469 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.93 | 118,360 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 123,420 |
| Top 10 Least Populous U.S. States | 0 | - | 4.95 | 146,847 |
| Cities of China (With Some Help) | 0 | - | 4.77 | 23,588 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.90 | 34,002 |
| Biggest Cities with Exceptions | 0 | - | 4.87 | 42,790 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,790 |
| Countries with Megacities | 0 | - | 4.99 | 176,153 |
| Countries of Europe by Population | 0 | - | 4.98 | 108,525 |
| Countries with Multiple Big Islands | 0 | - | 4.91 | 97,693 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 168,438 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 127,192 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 123,520 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.89 | 32,472 |
| Biggest Cities in the UK | 0 | - | 4.42 | 79,858 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 81,831 |
| Biggest World Cities in 1850 | 0 | - | 4.52 | 47,619 |
| Megacities on a World Map | 0 | - | 4.97 | 199,797 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 174,663 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.78 | 48,875 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 95,515 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.85 | 73,714 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,723 |
| Most Populous Countries by Year | 0 | - | 4.78 | 79,152 |
| Ten Northernmost Megacities | 0 | - | 4.41 | 44,089 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.93 | 74,636 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.42 | 60,669 |
| East Asian Islands on the Map | 0 | - | 4.49 | 27,629 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 85,716 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.97 | 53,053 |
| Largest World's Islands on the World Map | 0 | - | 4.53 | 122,104 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.98 | 72,146 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.85 | 125,096 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 83,723 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 312,871 |
| Countries With More than 50 Million People | 0 | - | 4.98 | 125,056 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.44 | 50,081 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.57 | 34,730 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.44 | 35,954 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 434,782 |
| Megacities on an Empty Map | 0 | - | 4.96 | 77,239 |
| Largest Islands in the British Isles With a Map | 0 | - | 4.54 | 25,934 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 52,073 |
| All 3M Cities on the World Map | 0 | - | 4.94 | 54,005 |
| African Island Countries | 0 | - | 4.95 | 80,574 |
| Asian Island Nations | 0 | - | 4.65 | 69,318 |
| All Cities in China with Population of 1 Million | 0 | - | 4.66 | 27,657 |
| Northernmost Major City by Country | 0 | - | 4.50 | 28,137 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.93 | 21,108 |
| All Cities in India with Population of 1 Million | 0 | - | 4.80 | 32,849 |
| Countries with Multiple Populous Islands | 0 | - | 4.78 | 70,939 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.93 | 55,333 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.93 | 78,486 |
| Richest Island Countries | 0 | - | 4.77 | 66,374 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.46 | 42,465 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 76,062 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 87,147 |
| Most Populous Country by First Two Letters | 0 | - | 4.64 | 60,281 |
| Two Largest Cities by First Two Letters | 0 | - | 4.65 | 56,243 |
| Islands by Satellite Image #1 | 0 | - | 4.66 | 52,186 |
| Largest World Capitals with Exceptions | 0 | - | 4.66 | 37,793 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.71 | 62,110 |
| Most Populous Islands of Europe | 0 | - | 4.42 | 20,357 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,583 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,363 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,443 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,989 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 99,181 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,319 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.53 | 43,386 |
| Biggest Cities in Deserts | 0 | - | 4.86 | 37,514 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 261,789 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.93 | 79,713 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.92 | 61,876 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 112,404 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 86,154 |
| Ten Southernmost Megacities | 0 | - | 4.68 | 32,433 |
| Countries with the Most People Bordering Them | 0 | - | 4.96 | 66,477 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.47 | 40,018 |
| People Born on Islands | 0 | - | 4.41 | 37,140 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.92 | 44,973 |
| Flags to Largest Cities | 0 | - | 4.55 | 23,084 |
| 500 Biggest US Cities | 0 | - | 4.88 | 76,096 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.46 | 26,464 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 54,395 |
| Demographics Multiple Choice | 0 | - | 4.55 | 36,298 |
| Biggest Cities in France - Extreme | 0 | - | 4.84 | 31,965 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.82 | 45,343 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 51,218 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 49,364 |
| Densest Countries Bordering Each Other | 0 | - | 4.88 | 57,567 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 83,640 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 67,082 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.58 | 21,714 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.58 | 27,531 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.82 | 42,071 |
| Biggest Cities in Australia on a Map | 0 | - | 4.58 | 27,149 |
