| Quiz | Points | Best | Rating | Takes |
|---|
| Biggest Cities in the United States | 0 | - | 4.93 | 704,606 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,162,848 |
| Biggest Urban Areas in the UK | 0 | - | 4.34 | 156,446 |
| Communist Countries in History | 0 | - | 4.47 | 381,505 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 286,781 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.55 | 89,493 |
| Biggest English-Speaking Cities | 0 | - | 4.39 | 127,534 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.82 | 98,846 |
| Biggest Cities by Language | 0 | - | 4.95 | 193,290 |
| Ancient City to Country | 0 | - | 4.78 | 83,270 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 204,723 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 305,665 |
| Most Populous Islands | 0 | - | 4.63 | 102,438 |
| Biggest US Cities by Decade | 0 | - | 4.93 | 132,438 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 130,753 |
| Biggest Cities Starting With A | 0 | - | 4.54 | 86,560 |
| Biggest Cities Starting With B | 0 | - | 4.38 | 120,473 |
| Biggest Cities Starting With D | 0 | - | 4.46 | 84,421 |
| Biggest Cities Starting With L | 0 | - | 4.42 | 84,566 |
| Biggest Cities Starting With M | 0 | - | 4.47 | 98,234 |
| Biggest Cities Starting With P | 0 | - | 4.44 | 87,109 |
| Biggest U.S. Cities A-Z | 0 | - | 4.53 | 108,737 |
| Biggest World Cities A-Z | 0 | - | 4.38 | 166,388 |
| Biggest Cities in France | 0 | - | 4.50 | 160,696 |
| Biggest Cities in Spain | 0 | - | 4.65 | 132,224 |
| Biggest Cities in Italy | 0 | - | 4.57 | 188,261 |
| Countries in World War II | 0 | - | 4.47 | 676,568 |
| Biggest Cities in California | 0 | - | 4.32 | 119,560 |
| Biggest Cities in the World Quiz | 0 | - | 4.84 | 568,666 |
| Countries in World War I | 0 | - | 4.92 | 181,993 |
| Biggest Cities in Africa Quiz | 0 | - | 4.88 | 83,813 |
| Biggest Cities in Europe | 0 | - | 4.57 | 402,190 |
| Biggest Cities in Canada | 0 | - | 4.56 | 108,174 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 69,777 |
| Countries with the Highest Population Density | 0 | - | 4.88 | 131,020 |
| Countries of the Soviet Union | 0 | - | 4.99 | 145,514 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 91,610 |
| Biggest Cities in China | 0 | - | 4.41 | 117,452 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 126,197 |
| Biggest Cities in Germany | 0 | - | 4.94 | 225,349 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 134,055 |
| Biggest City in Every Country | 0 | - | 4.97 | 66,551 |
| Independence from Whom | 0 | - | 4.99 | 152,410 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,217 |
| Biggest European Cities by Letter | 0 | - | 4.43 | 109,480 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 172,538 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,013 |
| Biggest Cities in Asia | 0 | - | 4.87 | 85,525 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 146,557 |
| Biggest Cities in History | 0 | - | 4.49 | 70,081 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,346 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,096 |
| Five Biggest Cities by Country | 0 | - | 4.76 | 121,939 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,124 |
| Important Cities in European History | 0 | - | 4.49 | 88,136 |
| Confederate States of the U.S. Civil War | 0 | - | 4.92 | 102,681 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 180,689 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,061 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,034 |
| Historical City to Country | 0 | - | 4.81 | 66,183 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 74,377 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,449 |
| U.S. States with the Lowest Population Density | 0 | - | 4.90 | 74,361 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,515 |
| Most Populous World Capitals | 0 | - | 4.89 | 127,575 |
| WWII Geography | 0 | - | 4.73 | 88,277 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 128,539 |
| Biggest European Cities by Century | 0 | - | 4.97 | 104,719 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 81,468 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 71,742 |
| Former Countries | 0 | - | 4.56 | 100,111 |
| Capitals of Most Populated Countries | 0 | - | 4.97 | 107,316 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 112,713 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 223,917 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 54,445 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.91 | 57,312 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 56,677 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.91 | 58,924 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,443 |
| Biggest Axis-Controlled Cities | 0 | - | 4.24 | 31,440 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 57,896 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,729 |
| Five Most Populated Cities by Continent | 0 | - | 4.95 | 145,405 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 110,176 |
| Biggest Cities in the World - Extreme | 0 | - | 4.97 | 72,765 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,219 |
| Countries With More Than 100 Million People | 0 | - | 4.97 | 100,268 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.92 | 117,688 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 122,908 |
| Top 10 Least Populous U.S. States | 0 | - | 4.95 | 146,321 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 33,672 |
| Biggest Cities with Exceptions | 0 | - | 4.87 | 42,530 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 216,715 |
| Countries with Megacities | 0 | - | 4.99 | 158,083 |
| Countries of Europe by Population | 0 | - | 4.98 | 107,900 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 167,135 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 126,502 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 122,409 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.88 | 32,277 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.93 | 81,372 |
| Biggest World Cities in 1850 | 0 | - | 4.52 | 47,389 |
| Megacities on a World Map | 0 | - | 4.97 | 198,389 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 65,540 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 153,225 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 94,032 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.85 | 72,757 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.84 | 38,485 |
| Most Populous Countries in 1800 | 0 | - | 4.25 | 32,867 |
| Most Populous Countries by Year | 0 | - | 4.77 | 78,589 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.93 | 73,462 |
| Countries of Europe After World War II | 0 | - | 4.97 | 142,603 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 111,443 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 85,260 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.96 | 52,432 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.98 | 71,761 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 83,224 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 300,285 |
| Countries With More than 50 Million People | 0 | - | 4.98 | 124,521 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 431,862 |
| Megacities on an Empty Map | 0 | - | 4.96 | 76,767 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.97 | 51,679 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,683 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,590 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,234 |
| All 3M Cities on the World Map | 0 | - | 4.93 | 53,412 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.92 | 20,381 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 28,897 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.93 | 54,904 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.93 | 77,918 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 80,563 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.97 | 141,805 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 75,711 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 86,658 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,250 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,061 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,167 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,716 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 97,655 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,102 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.52 | 43,170 |
| Biggest Cities in Deserts | 0 | - | 4.86 | 37,293 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 259,858 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.93 | 78,984 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.92 | 61,574 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.96 | 111,830 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 85,309 |
| Countries with the Most People Bordering Them | 0 | - | 4.96 | 66,076 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.92 | 44,652 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 115,691 |
| Former Flags | 0 | - | 4.96 | 70,272 |
| Country by Photo of its Leader #1 | 0 | - | 4.73 | 80,314 |
| 500 Biggest US Cities | 0 | - | 4.90 | 75,129 |
| Countries of the World in 1900 | 0 | - | 4.87 | 51,935 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 53,935 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 146,093 |
| Biggest Cities in France - Extreme | 0 | - | 4.84 | 31,508 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.82 | 44,688 |
| Louisiana Purchase with a Map | 0 | - | 4.94 | 30,263 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 50,357 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,055 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 72,303 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 92,341 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 104,742 |
| Densest Countries Bordering Each Other | 0 | - | 4.88 | 57,284 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 79,883 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 73,786 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 83,136 |
| Battle to Country | 0 | - | 4.89 | 30,427 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 84,106 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 66,684 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.58 | 21,571 |
| Cities by Former Name | 0 | - | 4.82 | 62,433 |
| Countries by Former Name | 0 | - | 4.99 | 82,253 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 58,384 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.81 | 41,666 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.81 | 43,831 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 32,844 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.43 | 19,502 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.90 | 27,651 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.93 | 43,864 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.89 | 36,471 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 58,202 |
| Countries by Population Range - Tile Select | 0 | - | 4.82 | 43,354 |
| Countries by Founding Story | 0 | - | 4.91 | 48,642 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.98 | 85,387 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 70,821 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 49,725 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.98 | 97,326 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.84 | 40,846 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 65,311 |
| Modern-Day Countries of the Khmer Empire on a Map | 0 | - | 4.82 | 32,479 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.99 | 51,933 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.95 | 62,017 |
| Countries of the World in 1444 | 0 | - | 4.95 | 41,004 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.94 | 45,209 |
| Largest Cities once part of the Byzantine Empire | 0 | - | 4.86 | 13,065 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.95 | 46,152 |
| 100 Biggest Soviet Cities in 1989 with a Map | 0 | - | 4.96 | 17,962 |
| Former Country Flag-Shape Picture Quiz | 0 | - | 4.98 | 52,574 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.97 | 21,380 |
