| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 36,163,960 |
| US States Quiz | 0 | - | 5.00 | 13,005,075 |
| Biggest Cities in the United States | 0 | - | 4.91 | 739,580 |
| World Capitals Quiz | 0 | - | 5.00 | 4,109,180 |
| Country Flags Quiz #1 | 0 | - | 4.96 | 2,216,822 |
| Biggest Cities in Texas | 0 | - | 4.24 | 105,238 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,208,201 |
| Biggest Urban Areas in the UK | 0 | - | 4.38 | 159,800 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 299,066 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.60 | 92,778 |
| Biggest English-Speaking Cities | 0 | - | 4.38 | 130,157 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.82 | 102,089 |
| Biggest Cities by Language | 0 | - | 4.95 | 200,344 |
| Biggest Mediterranean Cities | 0 | - | 4.60 | 71,229 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 316,069 |
| Most Populous Islands | 0 | - | 4.60 | 105,496 |
| Biggest Cities in Japan | 0 | - | 4.69 | 69,304 |
| Biggest US Cities by Decade | 0 | - | 4.94 | 137,131 |
| Biggest Cities in Russia | 0 | - | 4.48 | 71,301 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,679,874 |
| Countries that Start with B | 0 | - | 4.92 | 1,880,305 |
| Biggest Cities in Brazil | 0 | - | 4.54 | 44,155 |
| Biggest Cities in Poland | 0 | - | 4.55 | 42,821 |
| Biggest Cities Starting With A | 0 | - | 4.49 | 102,778 |
| Biggest Cities Starting With B | 0 | - | 4.32 | 136,929 |
| Biggest Cities Starting With D | 0 | - | 4.48 | 99,293 |
| Biggest Cities Starting With H | 0 | - | 4.53 | 88,819 |
| Biggest Cities Starting With L | 0 | - | 4.41 | 100,927 |
| Biggest Cities Starting With M | 0 | - | 4.52 | 117,682 |
| Biggest Cities Starting With P | 0 | - | 4.49 | 93,669 |
| Biggest Cities in Mexico | 0 | - | 4.54 | 22,580 |
| Biggest U.S. Cities A-Z | 0 | - | 4.61 | 113,784 |
| Biggest World Cities A-Z | 0 | - | 4.38 | 172,758 |
| Biggest Cities in France | 0 | - | 4.44 | 170,243 |
| Biggest Cities in Spain | 0 | - | 4.60 | 139,363 |
| Biggest Cities in Italy | 0 | - | 4.60 | 197,923 |
| Biggest Cities in California | 0 | - | 4.33 | 123,406 |
| Biggest Cities in the World Quiz | 0 | - | 4.80 | 598,379 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 21,181 |
| Biggest Cities in Africa Quiz | 0 | - | 4.88 | 86,637 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 44,897 |
| Biggest Cities in Europe | 0 | - | 4.50 | 419,314 |
| Biggest Cities in Canada | 0 | - | 4.60 | 112,500 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 33,063 |
| Countries with the Highest Population Density | 0 | - | 4.87 | 134,855 |
| Biggest Cities in China | 0 | - | 4.44 | 124,090 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 130,754 |
| Biggest Cities in Germany | 0 | - | 4.93 | 237,956 |
| Biggest City in Each U.S. State | 0 | - | 4.83 | 139,676 |
| Biggest City in Every Country | 0 | - | 4.97 | 70,732 |
| Biggest Cities in North Carolina | 0 | - | 4.53 | 29,576 |
| Biggest Cities in Wisconsin | 0 | - | 4.42 | 21,579 |
| Biggest City by Time Zone | 0 | - | 4.76 | 50,972 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.45 | 94,134 |
| Biggest English Cities by Century | 0 | - | 4.92 | 90,156 |
| Biggest Cities in Switzerland | 0 | - | 4.54 | 40,312 |
| Biggest European Cities by Letter | 0 | - | 4.47 | 112,965 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 178,502 |
| Biggest Cities in India | 0 | - | 4.60 | 57,403 |
| Biggest Cities in Asia | 0 | - | 4.91 | 88,828 |
| Islands by Largest City #1 | 0 | - | 4.43 | 79,765 |
| Biggest City by Island | 0 | - | 4.49 | 43,570 |
| Most Populous Countries in 1900 | 0 | - | 4.88 | 151,763 |
| Biggest Cities in History | 0 | - | 4.46 | 73,749 |
| Biggest Cities by Trait #1 | 0 | - | 4.42 | 41,049 |
| Random Capital to Country | 0 | - | 4.99 | 2,158,587 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.94 | 60,838 |
| Five Biggest Cities by Country | 0 | - | 4.60 | 140,971 |
| Most Populous Countries in 1950 | 0 | - | 4.45 | 65,906 |
| All Country Flags of the World | 0 | - | 5.00 | 2,498,397 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 57,998 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 64,712 |
| Biggest Coastal City by Country | 0 | - | 4.54 | 25,511 |
| U.S. States with the Highest Population Density | 0 | - | 4.44 | 56,133 |
| U.S. States with the Lowest Population Density | 0 | - | 4.89 | 76,686 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.50 | 60,271 |
| Most Populous World Capitals | 0 | - | 4.89 | 131,751 |
| Biggest City by Region | 0 | - | 4.47 | 30,872 |
| Most Populous 2nd Cities | 0 | - | 4.52 | 49,813 |
| Biggest City by Region #2 | 0 | - | 4.43 | 21,178 |
| United States Map Quiz | 0 | - | 4.95 | 3,680,099 |
| Europe Map Quiz | 0 | - | 4.99 | 3,905,466 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,555,400 |
| Biggest European Cities by Century | 0 | - | 4.96 | 109,620 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 84,678 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 74,606 |
| Capitals of Most Populated Countries | 0 | - | 4.96 | 110,664 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 116,461 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 231,316 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 57,298 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 60,343 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.95 | 59,682 |
| Islands by Largest City #2 | 0 | - | 4.53 | 24,976 |
| Biggest Cities by Latitude | 0 | - | 4.68 | 24,962 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.93 | 62,837 |
| Largest World Cities With Four Letters | 0 | - | 4.41 | 40,832 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.59 | 60,690 |
| Biggest Two-Word Cities | 0 | - | 4.60 | 35,988 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 61,681 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.71 | 58,364 |
| Cities of Ireland | 0 | - | 4.42 | 36,856 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 36,783 |
| Five Most Populated Cities by Continent | 0 | - | 4.95 | 152,555 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.63 | 87,635 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 83,074 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,030,787 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.79 | 47,836 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 125,463 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.92 | 122,829 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 127,341 |
| Top 10 Least Populous U.S. States | 0 | - | 4.93 | 150,819 |
| Cities of China (With Some Help) | 0 | - | 4.83 | 25,208 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.90 | 39,494 |
| Biggest Cities with Exceptions | 0 | - | 4.88 | 44,720 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 227,061 |
| Countries with Megacities | 0 | - | 4.99 | 181,790 |
| Countries of Europe by Population | 0 | - | 4.98 | 113,662 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 176,515 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.95 | 133,083 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 141,829 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.82 | 41,017 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,783,748 |
| Biggest Cities in the UK | 0 | - | 4.42 | 83,970 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.93 | 85,626 |
| Biggest World Cities in 1850 | 0 | - | 4.53 | 49,162 |
| Megacities on a World Map | 0 | - | 4.98 | 205,947 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 182,053 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.76 | 50,415 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 99,695 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.85 | 76,990 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.79 | 40,329 |
| Most Populous Countries by Year | 0 | - | 4.71 | 83,105 |
| Ten Northernmost Megacities | 0 | - | 4.43 | 45,059 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.96 | 84,023 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.43 | 61,775 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 88,808 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.96 | 57,500 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.98 | 74,558 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 86,645 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 332,626 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 136,209 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 51,789 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.47 | 35,955 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.45 | 37,378 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 466,654 |
| Megacities on an Empty Map | 0 | - | 4.96 | 80,507 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.97 | 55,106 |
| All 3M Cities on the World Map | 0 | - | 4.93 | 56,995 |
| All Cities in China with Population of 1 Million | 0 | - | 4.53 | 32,910 |
| Northernmost Major City by Country | 0 | - | 4.51 | 29,024 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.91 | 23,795 |
| All Cities in India with Population of 1 Million | 0 | - | 4.82 | 35,470 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.93 | 58,117 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 100,932 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 45,663 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 78,540 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 90,506 |
| Most Populous Country by First Two Letters | 0 | - | 4.60 | 62,375 |
| Two Largest Cities by First Two Letters | 0 | - | 4.59 | 58,348 |
| Largest World Capitals with Exceptions | 0 | - | 4.69 | 48,072 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.70 | 64,279 |
| Most Populous Islands of Europe | 0 | - | 4.47 | 21,654 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 71,021 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.83 | 56,659 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.89 | 62,529 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.90 | 49,991 |
| First Countries to Reach 5 Million People | 0 | - | 4.89 | 102,255 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.47 | 55,838 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.59 | 52,851 |
| Biggest Cities in Deserts | 0 | - | 4.93 | 39,162 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 274,972 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 85,086 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.92 | 64,332 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 31,695 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 123,595 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 89,072 |
| Ten Southernmost Megacities | 0 | - | 4.80 | 43,549 |
| Countries with the Most People Bordering Them | 0 | - | 4.96 | 69,082 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.46 | 41,365 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.90 | 46,913 |
| Flags to Largest Cities | 0 | - | 4.56 | 25,228 |
| 500 Biggest US Cities | 0 | - | 4.84 | 82,600 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 27,213 |
| Saint Lucia Country Quiz | 0 | - | 4.62 | 14,692 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 60,855 |
| Demographics Multiple Choice | 0 | - | 4.63 | 37,378 |
| Biggest Cities in France - Extreme | 0 | - | 4.84 | 35,465 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.71 | 50,239 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.84 | 60,621 |
| Densest Countries Bordering Each Other | 0 | - | 4.91 | 59,789 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 86,823 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 70,291 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.57 | 22,675 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.56 | 30,415 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.85 | 54,042 |
| World Map Without 20 Random Countries | 0 | - | 4.97 | 6,023,913 |
| Biggest Cities in Australia on a Map | 0 | - | 4.60 | 29,045 |
| Largest Nordic Cities on a Map | 0 | - | 4.51 | 16,806 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.46 | 18,451 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.82 | 46,676 |
