| Quiz | Points | Best | Rating | Takes |
|---|
| Biggest Cities in the United States | 0 | - | 4.93 | 705,060 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,163,434 |
| Biggest Urban Areas in the UK | 0 | - | 4.34 | 156,493 |
| Island Countries Quiz | 0 | - | 4.99 | 575,158 |
| World's Biggest Islands Quiz | 0 | - | 4.14 | 116,112 |
| Islands by Country #1 | 0 | - | 4.86 | 148,805 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 286,920 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.54 | 89,551 |
| Biggest English-Speaking Cities | 0 | - | 4.39 | 127,562 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.82 | 98,881 |
| Biggest Cities by Language | 0 | - | 4.95 | 193,366 |
| Biggest Mediterranean Cities | 0 | - | 4.73 | 69,127 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 305,774 |
| Biggest Cities in Japan | 0 | - | 4.73 | 66,344 |
| Biggest US Cities by Decade | 0 | - | 4.93 | 132,487 |
| Biggest Cities in Russia | 0 | - | 4.48 | 68,573 |
| Biggest Cities in Brazil | 0 | - | 4.54 | 41,412 |
| Biggest Cities in Poland | 0 | - | 4.73 | 39,949 |
| Biggest Cities Starting With A | 0 | - | 4.54 | 86,638 |
| Biggest Cities Starting With B | 0 | - | 4.38 | 120,564 |
| Biggest Cities Starting With D | 0 | - | 4.46 | 84,468 |
| Biggest Cities Starting With H | 0 | - | 4.49 | 75,136 |
| Biggest Cities Starting With L | 0 | - | 4.42 | 84,645 |
| Biggest Cities Starting With M | 0 | - | 4.47 | 98,318 |
| Biggest Cities Starting With P | 0 | - | 4.44 | 87,197 |
| Biggest Cities in Mexico | 0 | - | 4.51 | 20,878 |
| Biggest U.S. Cities A-Z | 0 | - | 4.53 | 108,782 |
| Biggest World Cities A-Z | 0 | - | 4.38 | 166,459 |
| Biggest Cities in France | 0 | - | 4.50 | 160,821 |
| Biggest Cities in Spain | 0 | - | 4.65 | 132,294 |
| Biggest Cities in Italy | 0 | - | 4.57 | 188,360 |
| Biggest Cities in California | 0 | - | 4.32 | 119,602 |
| Biggest Cities in the World Quiz | 0 | - | 4.84 | 569,020 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 19,783 |
| Biggest Cities in Africa Quiz | 0 | - | 4.88 | 83,846 |
| Biggest Cities in The Netherlands | 0 | - | 4.42 | 33,547 |
| Biggest Cities in Europe | 0 | - | 4.57 | 402,379 |
| Biggest Cities in Canada | 0 | - | 4.56 | 108,438 |
| Biggest Cities in Sweden | 0 | - | 4.67 | 24,444 |
| Countries with the Highest Population Density | 0 | - | 4.88 | 131,063 |
| Biggest Cities in China | 0 | - | 4.41 | 117,566 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 126,245 |
| Biggest Cities in Germany | 0 | - | 4.94 | 225,491 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 134,118 |
| Biggest City in Every Country | 0 | - | 4.97 | 66,586 |
| Biggest Cities in North Carolina | 0 | - | 4.48 | 25,674 |
| Biggest Cities in Wisconsin | 0 | - | 4.41 | 20,507 |
| Biggest City by Time Zone | 0 | - | 4.74 | 49,665 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.42 | 78,047 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,261 |
| Biggest Cities in Switzerland | 0 | - | 4.55 | 38,093 |
| Biggest European Cities by Letter | 0 | - | 4.43 | 109,506 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 172,607 |
| Biggest Cities in India | 0 | - | 4.52 | 54,660 |
| Biggest Cities in Asia | 0 | - | 4.87 | 85,556 |
| Islands by Largest City #1 | 0 | - | 4.45 | 78,016 |
| Biggest City by Island | 0 | - | 4.49 | 42,091 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 146,645 |
| Biggest Cities in History | 0 | - | 4.49 | 70,138 |
| Biggest Cities by Trait #1 | 0 | - | 4.44 | 39,727 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,128 |
| Islands A-Z | 0 | - | 4.41 | 90,789 |
| Five Biggest Cities by Country | 0 | - | 4.76 | 122,013 |
| Islands by Country #2 | 0 | - | 4.67 | 62,736 |
| Asian Islands | 0 | - | 4.42 | 18,114 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,155 |
| Islands by Shape #2 | 0 | - | 4.81 | 40,108 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,088 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,061 |
| Biggest Coastal City by Country | 0 | - | 4.56 | 23,934 |
| U.S. States with the Highest Population Density | 0 | - | 4.45 | 54,819 |
| U.S. States with the Lowest Population Density | 0 | - | 4.90 | 74,382 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.49 | 51,745 |
| Most Populous World Capitals | 0 | - | 4.89 | 127,608 |
| Biggest City by Region | 0 | - | 4.50 | 28,966 |
| Largest Islands of Greece | 0 | - | 4.53 | 25,045 |
| Most Populous 2nd Cities | 0 | - | 4.53 | 39,028 |
| Biggest City by Region #2 | 0 | - | 4.46 | 19,710 |
| Biggest European Cities by Century | 0 | - | 4.97 | 104,773 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 81,503 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 71,771 |
| Capitals of Most Populated Countries | 0 | - | 4.97 | 107,368 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 112,750 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,009 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 54,479 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.91 | 57,348 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 56,707 |
| Islands by Largest City #2 | 0 | - | 4.56 | 23,749 |
| Biggest Cities by Latitude | 0 | - | 4.73 | 24,010 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.91 | 58,960 |
| Largest World Cities With Four Letters | 0 | - | 4.41 | 39,197 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,467 |
| Biggest Two-Word Cities | 0 | - | 4.71 | 33,727 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 57,945 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.73 | 55,239 |
| Largest Indonesian Islands | 0 | - | 4.52 | 31,693 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,744 |
| Five Most Populated Cities by Continent | 0 | - | 4.95 | 145,502 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.56 | 68,145 |
| Biggest Cities in the World - Extreme | 0 | - | 4.97 | 72,810 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,239 |
| Countries With More Than 100 Million People | 0 | - | 4.97 | 100,315 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 118,009 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.92 | 117,743 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 122,957 |
| Top 10 Least Populous U.S. States | 0 | - | 4.95 | 146,366 |
| Cities of China (With Some Help) | 0 | - | 4.77 | 23,366 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 33,700 |
| Biggest Cities with Exceptions | 0 | - | 4.87 | 42,564 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 216,844 |
| Countries with Megacities | 0 | - | 4.99 | 158,145 |
| Countries of Europe by Population | 0 | - | 4.98 | 107,971 |
| Countries with Multiple Big Islands | 0 | - | 4.91 | 97,377 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 167,563 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 126,624 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 122,581 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.88 | 32,298 |
| Biggest Cities in the UK | 0 | - | 4.42 | 79,390 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.93 | 81,412 |
| Biggest World Cities in 1850 | 0 | - | 4.52 | 47,408 |
| Megacities on a World Map | 0 | - | 4.97 | 198,484 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 153,308 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.78 | 48,693 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 94,068 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.85 | 72,804 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,512 |
| Most Populous Countries by Year | 0 | - | 4.77 | 78,651 |
| Ten Northernmost Megacities | 0 | - | 4.41 | 43,979 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.93 | 73,503 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.42 | 60,503 |
| East Asian Islands on the Map | 0 | - | 4.49 | 27,429 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 85,305 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.96 | 52,489 |
| Largest World's Islands on the World Map | 0 | - | 4.56 | 121,446 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.98 | 71,801 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.84 | 124,712 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 83,292 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 300,492 |
| Countries With More than 50 Million People | 0 | - | 4.98 | 124,566 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.44 | 49,850 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.54 | 34,568 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.44 | 35,771 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 432,181 |
| Megacities on an Empty Map | 0 | - | 4.96 | 76,810 |
| Largest Islands in the British Isles With a Map | 0 | - | 4.54 | 25,733 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.97 | 51,733 |
| All 3M Cities on the World Map | 0 | - | 4.93 | 53,466 |
| African Island Countries | 0 | - | 4.95 | 78,139 |
| Asian Island Nations | 0 | - | 4.64 | 69,051 |
| All Cities in China with Population of 1 Million | 0 | - | 4.65 | 27,138 |
| Northernmost Major City by Country | 0 | - | 4.50 | 28,036 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.92 | 20,482 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 28,926 |
| Countries with Multiple Populous Islands | 0 | - | 4.78 | 70,681 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.93 | 54,947 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.93 | 77,988 |
| Richest Island Countries | 0 | - | 4.77 | 66,098 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 42,141 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 75,748 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 86,720 |
| Most Populous Country by First Two Letters | 0 | - | 4.64 | 60,010 |
| Two Largest Cities by First Two Letters | 0 | - | 4.65 | 55,980 |
| Islands by Satellite Image #1 | 0 | - | 4.65 | 51,738 |
| Largest World Capitals with Exceptions | 0 | - | 4.65 | 37,156 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.71 | 61,863 |
| Most Populous Islands of Europe | 0 | - | 4.41 | 20,178 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,308 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,109 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,204 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,754 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 98,282 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,122 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.52 | 43,196 |
| Biggest Cities in Deserts | 0 | - | 4.86 | 37,317 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 260,027 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.93 | 79,041 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.92 | 61,602 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.96 | 111,880 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 85,631 |
| Ten Southernmost Megacities | 0 | - | 4.67 | 32,255 |
| Countries with the Most People Bordering Them | 0 | - | 4.96 | 66,121 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.47 | 39,853 |
| People Born on Islands | 0 | - | 4.41 | 37,005 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.92 | 44,691 |
| Flags to Largest Cities | 0 | - | 4.55 | 22,714 |
| 500 Biggest US Cities | 0 | - | 4.90 | 75,228 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.46 | 26,358 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 53,972 |
| Demographics Multiple Choice | 0 | - | 4.54 | 36,157 |
| Biggest Cities in France - Extreme | 0 | - | 4.84 | 31,543 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.82 | 44,742 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 50,437 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 49,107 |
| Densest Countries Bordering Each Other | 0 | - | 4.88 | 57,318 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 83,187 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 66,738 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.58 | 21,588 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.57 | 27,173 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.82 | 41,698 |
| Biggest Cities in Australia on a Map | 0 | - | 4.58 | 26,921 |
