| Quiz | Points | Best | Rating | Takes |
|---|
| Biggest Cities in the United States | 0 | - | 4.92 | 708,883 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,168,270 |
| Biggest Urban Areas in the UK | 0 | - | 4.34 | 156,821 |
| Island Countries Quiz | 0 | - | 4.99 | 577,385 |
| World's Biggest Islands Quiz | 0 | - | 4.15 | 116,303 |
| Islands by Country #1 | 0 | - | 4.86 | 149,504 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 288,139 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.55 | 89,944 |
| Biggest English-Speaking Cities | 0 | - | 4.39 | 127,829 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.84 | 99,179 |
| Biggest Cities by Language | 0 | - | 4.95 | 194,214 |
| Biggest Mediterranean Cities | 0 | - | 4.73 | 69,351 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 306,872 |
| Biggest Cities in Japan | 0 | - | 4.68 | 66,637 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 132,981 |
| Biggest Cities in Russia | 0 | - | 4.48 | 68,846 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 41,748 |
| Biggest Cities in Poland | 0 | - | 4.73 | 40,229 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 87,098 |
| Biggest Cities Starting With B | 0 | - | 4.38 | 121,043 |
| Biggest Cities Starting With D | 0 | - | 4.46 | 84,811 |
| Biggest Cities Starting With H | 0 | - | 4.48 | 75,780 |
| Biggest Cities Starting With L | 0 | - | 4.42 | 85,077 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 98,844 |
| Biggest Cities Starting With P | 0 | - | 4.44 | 87,653 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 21,065 |
| Biggest U.S. Cities A-Z | 0 | - | 4.54 | 109,192 |
| Biggest World Cities A-Z | 0 | - | 4.39 | 167,111 |
| Biggest Cities in France | 0 | - | 4.52 | 161,739 |
| Biggest Cities in Spain | 0 | - | 4.65 | 133,025 |
| Biggest Cities in Italy | 0 | - | 4.63 | 189,268 |
| Biggest Cities in California | 0 | - | 4.30 | 119,966 |
| Biggest Cities in the World Quiz | 0 | - | 4.84 | 572,031 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 19,908 |
| Biggest Cities in Africa Quiz | 0 | - | 4.88 | 84,186 |
| Biggest Cities in Europe | 0 | - | 4.63 | 404,038 |
| Biggest Cities in Canada | 0 | - | 4.57 | 108,863 |
| Biggest Cities in Sweden | 0 | - | 4.71 | 24,634 |
| Countries with the Highest Population Density | 0 | - | 4.88 | 131,444 |
| Biggest Cities in China | 0 | - | 4.42 | 118,372 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 126,707 |
| Biggest Cities in Germany | 0 | - | 4.94 | 226,811 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 134,987 |
| Biggest City in Every Country | 0 | - | 4.97 | 66,876 |
| Biggest Cities in North Carolina | 0 | - | 4.48 | 25,819 |
| Biggest City by Time Zone | 0 | - | 4.74 | 49,810 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.42 | 78,223 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,801 |
| Biggest Cities in Switzerland | 0 | - | 4.56 | 38,329 |
| Biggest European Cities by Letter | 0 | - | 4.43 | 109,859 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,515 |
| Biggest Cities in India | 0 | - | 4.52 | 54,921 |
| Biggest Cities in Asia | 0 | - | 4.87 | 86,026 |
| Islands by Largest City #1 | 0 | - | 4.45 | 78,371 |
| Biggest City by Island | 0 | - | 4.49 | 42,258 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 147,160 |
| Biggest Cities in History | 0 | - | 4.47 | 70,675 |
| Biggest Cities by Trait #1 | 0 | - | 4.44 | 39,883 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,417 |
| Islands A-Z | 0 | - | 4.41 | 91,524 |
| Five Biggest Cities by Country | 0 | - | 4.76 | 122,534 |
| Islands by Country #2 | 0 | - | 4.67 | 63,063 |
| Asian Islands | 0 | - | 4.42 | 18,194 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,441 |
| Islands by Shape #2 | 0 | - | 4.81 | 40,280 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,264 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,235 |
| Biggest Coastal City by Country | 0 | - | 4.56 | 24,118 |
| U.S. States with the Highest Population Density | 0 | - | 4.46 | 54,991 |
| U.S. States with the Lowest Population Density | 0 | - | 4.90 | 74,613 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.57 | 58,664 |
| Most Populous World Capitals | 0 | - | 4.89 | 128,249 |
| Biggest City by Region | 0 | - | 4.50 | 29,183 |
| Largest Islands of Greece | 0 | - | 4.52 | 25,725 |
| Most Populous 2nd Cities | 0 | - | 4.53 | 39,287 |
| Biggest City by Region #2 | 0 | - | 4.44 | 19,880 |
| Biggest European Cities by Century | 0 | - | 4.96 | 105,233 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 81,837 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 72,038 |
| Capitals of Most Populated Countries | 0 | - | 4.97 | 107,713 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 113,387 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,818 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 54,821 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.91 | 57,677 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 57,026 |
| Islands by Largest City #2 | 0 | - | 4.54 | 23,919 |
| Biggest Cities by Latitude | 0 | - | 4.73 | 24,113 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,269 |
| Largest World Cities With Four Letters | 0 | - | 4.41 | 39,413 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,697 |
| Biggest Two-Word Cities | 0 | - | 4.71 | 33,994 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 58,330 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.73 | 55,564 |
| Largest Indonesian Islands | 0 | - | 4.53 | 38,207 |
| Largest Philippines Islands | 0 | - | 4.59 | 16,698 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,874 |
| Five Most Populated Cities by Continent | 0 | - | 4.95 | 146,325 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.57 | 68,411 |
| Biggest Cities in the World - Extreme | 0 | - | 4.97 | 73,193 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,391 |
| Countries With More Than 100 Million People | 0 | - | 4.97 | 100,739 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 118,456 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.93 | 118,340 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 123,402 |
| Top 10 Least Populous U.S. States | 0 | - | 4.95 | 146,830 |
| Cities of China (With Some Help) | 0 | - | 4.77 | 23,584 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.90 | 34,000 |
| Biggest Cities with Exceptions | 0 | - | 4.87 | 42,782 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,764 |
| Countries with Megacities | 0 | - | 4.99 | 176,137 |
| Countries of Europe by Population | 0 | - | 4.98 | 108,517 |
| Countries with Multiple Big Islands | 0 | - | 4.91 | 97,686 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 168,413 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 127,175 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 123,504 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.89 | 32,467 |
| Biggest Cities in the UK | 0 | - | 4.42 | 79,846 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 81,821 |
| Biggest World Cities in 1850 | 0 | - | 4.52 | 47,607 |
| Megacities on a World Map | 0 | - | 4.97 | 199,782 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 174,593 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.78 | 48,870 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 95,511 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.85 | 73,706 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,718 |
| Most Populous Countries by Year | 0 | - | 4.78 | 79,144 |
| Ten Northernmost Megacities | 0 | - | 4.41 | 44,086 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.93 | 74,629 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.42 | 60,662 |
| East Asian Islands on the Map | 0 | - | 4.49 | 27,625 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 85,701 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.97 | 53,040 |
| Largest World's Islands on the World Map | 0 | - | 4.53 | 122,080 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.98 | 72,133 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.85 | 125,080 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 83,714 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 312,773 |
| Countries With More than 50 Million People | 0 | - | 4.98 | 125,040 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.44 | 50,072 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.57 | 34,725 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.44 | 35,949 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 434,710 |
| Megacities on an Empty Map | 0 | - | 4.96 | 77,225 |
| Largest Islands in the British Isles With a Map | 0 | - | 4.54 | 25,929 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 52,060 |
| All 3M Cities on the World Map | 0 | - | 4.94 | 53,995 |
| African Island Countries | 0 | - | 4.95 | 80,560 |
| Asian Island Nations | 0 | - | 4.65 | 69,310 |
| All Cities in China with Population of 1 Million | 0 | - | 4.66 | 27,648 |
| Northernmost Major City by Country | 0 | - | 4.50 | 28,133 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.93 | 21,097 |
| All Cities in India with Population of 1 Million | 0 | - | 4.80 | 32,844 |
| Countries with Multiple Populous Islands | 0 | - | 4.78 | 70,934 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.93 | 55,320 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.93 | 78,473 |
| Richest Island Countries | 0 | - | 4.77 | 66,368 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.46 | 42,461 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 76,055 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 87,140 |
| Most Populous Country by First Two Letters | 0 | - | 4.64 | 60,272 |
| Two Largest Cities by First Two Letters | 0 | - | 4.65 | 56,236 |
| Islands by Satellite Image #1 | 0 | - | 4.66 | 52,172 |
| Largest World Capitals with Exceptions | 0 | - | 4.66 | 37,780 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.71 | 62,106 |
| Most Populous Islands of Europe | 0 | - | 4.42 | 20,349 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,574 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,355 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,438 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,981 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 99,162 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,311 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.53 | 43,382 |
| Biggest Cities in Deserts | 0 | - | 4.86 | 37,513 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 261,750 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.93 | 79,702 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.92 | 61,870 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 112,390 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 86,147 |
| Ten Southernmost Megacities | 0 | - | 4.68 | 32,430 |
| Countries with the Most People Bordering Them | 0 | - | 4.96 | 66,468 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.47 | 40,016 |
| People Born on Islands | 0 | - | 4.41 | 37,139 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.92 | 44,967 |
| Flags to Largest Cities | 0 | - | 4.55 | 23,077 |
| 500 Biggest US Cities | 0 | - | 4.88 | 76,055 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.46 | 26,463 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 54,381 |
| Demographics Multiple Choice | 0 | - | 4.55 | 36,292 |
| Biggest Cities in France - Extreme | 0 | - | 4.84 | 31,954 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.82 | 45,325 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 51,198 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 49,355 |
| Densest Countries Bordering Each Other | 0 | - | 4.88 | 57,560 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 83,559 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 67,077 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.58 | 21,711 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.58 | 27,522 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.82 | 42,057 |
| Biggest Cities in Australia on a Map | 0 | - | 4.58 | 27,146 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.46 | 17,108 |
