| Quiz | Points | Best | Rating | Takes |
|---|
| Biggest Cities in the United States | 0 | - | 4.91 | 776,620 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,253,792 |
| Communist Countries in History | 0 | - | 4.42 | 421,004 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 311,542 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.84 | 105,300 |
| Biggest Cities by Language | 0 | - | 4.95 | 207,115 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 216,200 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 326,016 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 149,852 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 139,737 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 123,096 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 109,526 |
| Biggest U.S. Cities A-Z | 0 | - | 4.51 | 118,592 |
| Biggest Cities in France | 0 | - | 4.48 | 178,773 |
| Biggest Cities in Spain | 0 | - | 4.51 | 146,455 |
| Biggest Cities in Italy | 0 | - | 4.61 | 207,339 |
| Countries in World War II | 0 | - | 4.44 | 764,512 |
| Biggest Cities in the World Quiz | 0 | - | 4.82 | 628,740 |
| Countries in World War I | 0 | - | 4.91 | 201,676 |
| Biggest Cities in Africa Quiz | 0 | - | 4.89 | 89,498 |
| Biggest Cities in Europe | 0 | - | 4.49 | 436,100 |
| Biggest Cities in Canada | 0 | - | 4.63 | 116,264 |
| Biggest Cities in Sweden | 0 | - | 4.84 | 35,464 |
| Countries Bordering China Since 1914 | 0 | - | 4.90 | 85,007 |
| Countries with the Highest Population Density | 0 | - | 4.88 | 139,128 |
| Countries of the Soviet Union | 0 | - | 4.99 | 177,895 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.89 | 97,989 |
| Biggest Cities in China | 0 | - | 4.43 | 130,535 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 135,289 |
| Biggest Cities in Germany | 0 | - | 4.94 | 250,436 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 145,032 |
| Biggest City in Every Country | 0 | - | 4.97 | 73,660 |
| Independence from Whom | 0 | - | 4.99 | 176,902 |
| Biggest English Cities by Century | 0 | - | 4.93 | 95,428 |
| Biggest European Cities by Letter | 0 | - | 4.51 | 115,705 |
| Most Populous Countries in 2050 | 0 | - | 4.93 | 184,239 |
| Who Controlled These Colonies? | 0 | - | 4.84 | 107,587 |
| Biggest Cities in Asia | 0 | - | 4.92 | 92,014 |
| Most Populous Countries in 1900 | 0 | - | 4.89 | 156,999 |
| Biggest Cities in History | 0 | - | 4.47 | 76,493 |
| Warsaw Pact Countries | 0 | - | 4.87 | 78,401 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 63,304 |
| Five Biggest Cities by Country | 0 | - | 4.52 | 146,631 |
| Most Populous Countries in 1950 | 0 | - | 4.44 | 68,491 |
| Confederate States of the U.S. Civil War | 0 | - | 4.90 | 119,034 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 198,776 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 59,755 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 66,320 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 84,244 |
| Countries in the Ottoman Empire | 0 | - | 4.90 | 65,859 |
| U.S. States with the Lowest Population Density | 0 | - | 4.90 | 78,783 |
| Countries Settled by Vikings | 0 | - | 4.94 | 107,951 |
| Most Populous World Capitals | 0 | - | 4.90 | 135,520 |
| Countries that Bordered the USSR | 0 | - | 4.91 | 137,878 |
| Biggest European Cities by Century | 0 | - | 4.96 | 114,512 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 87,635 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 77,708 |
| Former Countries | 0 | - | 4.63 | 120,277 |
| Capitals of the Most Populated Countries | 0 | - | 4.97 | 113,664 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 119,608 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 238,098 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 60,036 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 63,088 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.95 | 62,409 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 67,512 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.63 | 62,914 |
| Biggest Axis-Controlled Cities | 0 | - | 4.25 | 33,011 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.93 | 64,978 |
| Largest Cities in Alexander's Empire | 0 | - | 4.47 | 37,848 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 159,766 |
| Neutral European Countries of WWII | 0 | - | 4.94 | 124,238 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 87,529 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.80 | 49,337 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 132,199 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.93 | 127,042 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 143,478 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 155,657 |
| Cities of China (With Some Help) | 0 | - | 4.86 | 27,053 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.90 | 41,266 |
| Biggest Cities with Exceptions | 0 | - | 4.85 | 46,569 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 236,365 |
| Countries with Megacities | 0 | - | 4.99 | 188,246 |
| Countries of Europe by Population | 0 | - | 4.98 | 119,225 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 195,448 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 139,719 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 149,793 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.85 | 42,682 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 89,559 |
| Biggest World Cities in 1850 | 0 | - | 4.63 | 62,881 |
| Megacities on a World Map | 0 | - | 4.98 | 213,205 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 72,880 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 190,451 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 104,135 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.86 | 80,280 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.76 | 41,832 |
| Most Populous Countries in 1800 | 0 | - | 4.31 | 36,575 |
| Most Populous Countries by Year | 0 | - | 4.76 | 87,872 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 87,478 |
| Countries of Europe After World War II | 0 | - | 4.98 | 161,710 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 130,458 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 92,413 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.97 | 61,430 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.98 | 77,157 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 89,858 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 353,393 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 162,389 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 490,082 |
| Megacities on an Empty Map | 0 | - | 4.96 | 83,902 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.97 | 57,726 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 47,388 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 79,252 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 65,249 |
| All 3M Cities on the World Map | 0 | - | 4.94 | 60,114 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.91 | 26,297 |
| All Cities in India with Population of 1 Million | 0 | - | 4.82 | 38,194 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.94 | 61,046 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 105,256 |
| Soviet Union Country Quiz | 0 | - | 4.86 | 63,727 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.97 | 170,218 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 81,418 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 93,998 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 73,755 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.74 | 66,659 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.91 | 64,974 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 52,064 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 105,864 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.47 | 57,534 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.60 | 54,567 |
| Biggest Cities in Deserts | 0 | - | 4.93 | 40,649 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 290,131 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 91,303 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 66,721 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 139,951 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 92,201 |
| Ten Southernmost Megacities | 0 | - | 4.82 | 44,966 |
| Countries with the Most People Bordering Them | 0 | - | 4.96 | 72,039 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.90 | 48,975 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 127,630 |
| Former Flags | 0 | - | 4.97 | 77,537 |
| 500 Biggest US Cities | 0 | - | 4.85 | 89,890 |
| Countries of the World in 1900 | 0 | - | 4.85 | 60,378 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 74,603 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 161,653 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 39,523 |
| Louisiana Purchase with a Map | 0 | - | 4.95 | 33,588 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.86 | 68,898 |
| Countries in the Byzantine Empire | 0 | - | 4.93 | 64,161 |
| Countries of Europe in 1444 | 0 | - | 4.93 | 82,268 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 105,426 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 119,557 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 62,255 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 88,695 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 83,718 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 89,762 |
| Battle to Country | 0 | - | 4.87 | 33,258 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 94,092 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 83,799 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.58 | 23,698 |
| Countries by Former Name | 0 | - | 4.98 | 89,604 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 65,341 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.88 | 56,596 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 37,648 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.39 | 21,520 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 39,037 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.96 | 51,448 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.89 | 43,839 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.95 | 67,433 |
| Countries by Population Range - Tile Select | 0 | - | 4.83 | 48,043 |
| Countries by Founding Story | 0 | - | 4.91 | 52,264 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 99,735 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 77,550 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 57,207 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 116,927 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.82 | 46,590 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 73,922 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.99 | 58,407 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.95 | 84,898 |
| Countries of the World in 1444 | 0 | - | 4.98 | 46,812 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.93 | 53,143 |
| Largest Cities once part of the Byzantine Empire | 0 | - | 4.71 | 17,223 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 54,541 |
| 100 Biggest Soviet Cities in 1989 with a Map | 0 | - | 4.94 | 23,667 |
| Former Country Flag-Shape Picture Quiz | 0 | - | 4.98 | 60,305 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.97 | 25,796 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 57,998 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.98 | 73,430 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.93 | 43,982 |
| Biggest Cities Ever Under Danish Rule | 0 | - | 4.40 | 14,229 |
| Countries of Europe before World War II with a Map | 0 | - | 4.94 | 34,277 |
| 5 Most Populous Cities in Each Country With a Map | 0 | - | 4.97 | 29,522 |
| 500 Biggest Cities in the World on a Map | 0 | - | 4.96 | 90,584 |
| All 50k+ Cities in Europe with a Map | 0 | - | 4.89 | 15,380 |
| 50 Biggest Cities in 1920 on a World Map | 0 | - | 4.99 | 62,321 |
| 5 Largest Cities for Every Letter on Map | 0 | - | 4.97 | 38,590 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 43,375 |
| Largest City on Every Continent A-Z | 0 | - | 4.97 | 30,298 |
| Modern-Day Countries of the Holy Roman Empire on a Map | 0 | - | 4.93 | 38,222 |
| Biggest Cities Founded by the Dutch | 0 | - | 4.46 | 16,180 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.96 | 50,265 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.97 | 71,486 |
