| Quiz | Points | Best | Rating | Takes |
|---|
| Biggest Cities in the United States | 0 | - | 4.92 | 708,445 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,167,708 |
| Biggest Urban Areas in the UK | 0 | - | 4.34 | 156,790 |
| Communist Countries in History | 0 | - | 4.48 | 383,532 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 288,007 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.55 | 89,908 |
| Biggest English-Speaking Cities | 0 | - | 4.39 | 127,809 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.84 | 99,147 |
| Biggest Cities by Language | 0 | - | 4.95 | 194,160 |
| Ancient City to Country | 0 | - | 4.73 | 83,845 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 205,331 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 306,762 |
| Most Populous Islands | 0 | - | 4.64 | 102,767 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 132,926 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 131,465 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 87,032 |
| Biggest Cities Starting With B | 0 | - | 4.38 | 120,967 |
| Biggest Cities Starting With D | 0 | - | 4.46 | 84,761 |
| Biggest Cities Starting With L | 0 | - | 4.42 | 85,015 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 98,779 |
| Biggest Cities Starting With P | 0 | - | 4.44 | 87,594 |
| Biggest U.S. Cities A-Z | 0 | - | 4.54 | 109,154 |
| Biggest World Cities A-Z | 0 | - | 4.39 | 167,016 |
| Biggest Cities in France | 0 | - | 4.52 | 161,637 |
| Biggest Cities in Spain | 0 | - | 4.65 | 132,938 |
| Biggest Cities in Italy | 0 | - | 4.63 | 189,137 |
| Countries in World War II | 0 | - | 4.48 | 680,897 |
| Biggest Cities in California | 0 | - | 4.30 | 119,925 |
| Biggest Cities in the World Quiz | 0 | - | 4.84 | 571,696 |
| Countries in World War I | 0 | - | 4.92 | 182,969 |
| Biggest Cities in Africa Quiz | 0 | - | 4.88 | 84,154 |
| Biggest Cities in Europe | 0 | - | 4.63 | 403,860 |
| Biggest Cities in Canada | 0 | - | 4.57 | 108,828 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,218 |
| Countries with the Highest Population Density | 0 | - | 4.88 | 131,394 |
| Countries of the Soviet Union | 0 | - | 4.99 | 146,320 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 92,110 |
| Biggest Cities in China | 0 | - | 4.43 | 118,300 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 126,660 |
| Biggest Cities in Germany | 0 | - | 4.94 | 226,682 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 134,944 |
| Biggest City in Every Country | 0 | - | 4.97 | 66,842 |
| Independence from Whom | 0 | - | 4.99 | 152,984 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,762 |
| Biggest European Cities by Letter | 0 | - | 4.43 | 109,729 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,448 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,649 |
| Biggest Cities in Asia | 0 | - | 4.87 | 85,979 |
| Former Countries by Capital | 0 | - | 4.41 | 97,416 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 147,109 |
| Biggest Cities in History | 0 | - | 4.47 | 70,627 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,626 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,381 |
| Five Biggest Cities by Country | 0 | - | 4.76 | 122,473 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,408 |
| Important Cities in European History | 0 | - | 4.49 | 88,397 |
| Confederate States of the U.S. Civil War | 0 | - | 4.93 | 103,449 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 181,718 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,241 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,211 |
| Historical City to Country | 0 | - | 4.81 | 66,417 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 74,906 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,733 |
| U.S. States with the Lowest Population Density | 0 | - | 4.90 | 74,592 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,829 |
| Most Populous World Capitals | 0 | - | 4.89 | 128,199 |
| WWII Geography | 0 | - | 4.73 | 88,904 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 128,988 |
| Biggest European Cities by Century | 0 | - | 4.96 | 105,166 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 81,798 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 72,001 |
| Former Countries | 0 | - | 4.52 | 100,431 |
| Capitals of Most Populated Countries | 0 | - | 4.97 | 107,675 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 113,350 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,722 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 54,786 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.91 | 57,648 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 56,995 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,237 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,673 |
| Biggest Axis-Controlled Cities | 0 | - | 4.24 | 31,522 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 58,297 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,861 |
| Five Most Populated Cities by Continent | 0 | - | 4.95 | 146,205 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 110,866 |
| Biggest Cities in the World - Extreme | 0 | - | 4.97 | 73,152 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,371 |
| Countries With More Than 100 Million People | 0 | - | 4.97 | 100,680 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.93 | 118,290 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 123,338 |
| Top 10 Least Populous U.S. States | 0 | - | 4.95 | 146,774 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.90 | 33,969 |
| Biggest Cities with Exceptions | 0 | - | 4.87 | 42,762 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,666 |
| Countries with Megacities | 0 | - | 4.99 | 176,019 |
| Countries of Europe by Population | 0 | - | 4.98 | 108,451 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 168,318 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 127,118 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 123,430 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.89 | 32,452 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 81,773 |
| Biggest World Cities in 1850 | 0 | - | 4.52 | 47,580 |
| Megacities on a World Map | 0 | - | 4.97 | 199,706 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 65,995 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 174,343 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 95,459 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.85 | 73,658 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,698 |
| Most Populous Countries in 1800 | 0 | - | 4.25 | 33,087 |
| Most Populous Countries by Year | 0 | - | 4.77 | 79,100 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.93 | 74,599 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,511 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 112,446 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 85,646 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.97 | 52,985 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.98 | 72,093 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 83,658 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 312,395 |
| Countries With More than 50 Million People | 0 | - | 4.98 | 124,984 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 434,455 |
| Megacities on an Empty Map | 0 | - | 4.96 | 77,183 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.97 | 52,023 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,844 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,908 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,499 |
| All 3M Cities on the World Map | 0 | - | 4.94 | 53,930 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.93 | 21,021 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.93 | 55,283 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.93 | 78,420 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 80,972 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,568 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 76,018 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 87,085 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,547 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,329 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,407 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,957 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 99,102 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,291 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.53 | 43,363 |
| Biggest Cities in Deserts | 0 | - | 4.86 | 37,501 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 261,587 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.93 | 79,630 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.92 | 61,849 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 112,335 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 86,104 |
| Countries with the Most People Bordering Them | 0 | - | 4.96 | 66,422 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.92 | 44,933 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 116,343 |
| Former Flags | 0 | - | 4.96 | 70,701 |
| 500 Biggest US Cities | 0 | - | 4.88 | 75,960 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,484 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 54,327 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 147,020 |
| Biggest Cities in France - Extreme | 0 | - | 4.84 | 31,908 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.82 | 45,259 |
| Louisiana Purchase with a Map | 0 | - | 4.94 | 30,447 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 51,117 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,318 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 72,920 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 93,089 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 105,701 |
| Densest Countries Bordering Each Other | 0 | - | 4.88 | 57,534 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 80,450 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,402 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 83,460 |
| Battle to Country | 0 | - | 4.89 | 30,605 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 84,702 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 67,026 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.58 | 21,696 |
| Cities by Former Name | 0 | - | 4.82 | 62,704 |
| Countries by Former Name | 0 | - | 4.98 | 82,674 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 58,800 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.82 | 42,013 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.82 | 44,142 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 33,119 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.43 | 19,631 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.88 | 34,480 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.93 | 44,401 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.89 | 36,934 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 58,732 |
| Countries by Population Range - Tile Select | 0 | - | 4.82 | 43,611 |
| Countries by Founding Story | 0 | - | 4.91 | 48,844 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.98 | 86,204 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 71,103 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 50,188 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.98 | 98,330 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.84 | 41,198 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 65,865 |
| Modern-Day Countries of the Khmer Empire on a Map | 0 | - | 4.82 | 32,779 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.99 | 52,350 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.95 | 62,485 |
| Countries of the World in 1444 | 0 | - | 4.95 | 41,418 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.94 | 45,641 |
| Largest Cities once part of the Byzantine Empire | 0 | - | 4.77 | 13,618 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.95 | 46,625 |
| 100 Biggest Soviet Cities in 1989 with a Map | 0 | - | 4.95 | 18,182 |
| Former Country Flag-Shape Picture Quiz | 0 | - | 4.98 | 52,996 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.97 | 21,639 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 50,048 |
