| Quiz | Points | Best | Rating | Takes |
|---|
| Biggest Cities in the United States | 0 | - | 4.91 | 739,147 |
| Biggest Cities in Texas | 0 | - | 4.24 | 105,204 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,207,718 |
| Biggest Urban Areas in the UK | 0 | - | 4.38 | 159,766 |
| Communist Countries in History | 0 | - | 4.43 | 400,998 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 298,926 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.60 | 92,746 |
| Biggest English-Speaking Cities | 0 | - | 4.38 | 130,131 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.82 | 102,059 |
| Biggest Cities by Language | 0 | - | 4.95 | 200,283 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 210,713 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 315,946 |
| Most Populous Islands | 0 | - | 4.60 | 105,459 |
| Biggest US Cities by Decade | 0 | - | 4.94 | 137,047 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 135,236 |
| Biggest Cities Starting With A | 0 | - | 4.49 | 102,736 |
| Biggest Cities Starting With B | 0 | - | 4.32 | 136,898 |
| Biggest Cities Starting With D | 0 | - | 4.48 | 99,255 |
| Biggest Cities Starting With L | 0 | - | 4.41 | 100,889 |
| Biggest Cities Starting With M | 0 | - | 4.52 | 117,506 |
| Biggest Cities Starting With P | 0 | - | 4.49 | 93,634 |
| Biggest U.S. Cities A-Z | 0 | - | 4.61 | 113,723 |
| Biggest World Cities A-Z | 0 | - | 4.38 | 172,703 |
| Biggest Cities in France | 0 | - | 4.44 | 170,161 |
| Biggest Cities in Spain | 0 | - | 4.60 | 139,292 |
| Biggest Cities in Italy | 0 | - | 4.60 | 197,790 |
| Countries in World War II | 0 | - | 4.43 | 713,050 |
| Biggest Cities in California | 0 | - | 4.33 | 123,378 |
| Biggest Cities in the World Quiz | 0 | - | 4.80 | 598,049 |
| Countries in World War I | 0 | - | 4.91 | 191,292 |
| Biggest Cities in Africa Quiz | 0 | - | 4.88 | 86,603 |
| Biggest Cities in Europe | 0 | - | 4.50 | 419,107 |
| Biggest Cities in Canada | 0 | - | 4.60 | 112,464 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 33,042 |
| Countries Bordering China Since 1914 | 0 | - | 4.91 | 73,650 |
| Countries with the Highest Population Density | 0 | - | 4.87 | 134,807 |
| Countries of the Soviet Union | 0 | - | 4.99 | 154,120 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 95,033 |
| Biggest Cities in China | 0 | - | 4.44 | 124,006 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 130,616 |
| Biggest Cities in Germany | 0 | - | 4.93 | 237,837 |
| Biggest City in Each U.S. State | 0 | - | 4.83 | 139,632 |
| Biggest City in Every Country | 0 | - | 4.97 | 70,698 |
| Independence from Whom | 0 | - | 4.99 | 170,828 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.45 | 94,114 |
| Biggest English Cities by Century | 0 | - | 4.92 | 90,091 |
| Biggest European Cities by Letter | 0 | - | 4.47 | 112,950 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 178,449 |
| Who Controlled These Colonies? | 0 | - | 4.80 | 104,026 |
| Biggest Cities in Asia | 0 | - | 4.91 | 88,788 |
| Former Countries by Capital | 0 | - | 4.41 | 99,150 |
| Most Populous Countries in 1900 | 0 | - | 4.88 | 151,717 |
| Biggest Cities in History | 0 | - | 4.46 | 73,714 |
| Warsaw Pact Countries | 0 | - | 4.88 | 66,660 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 60,785 |
| Five Biggest Cities by Country | 0 | - | 4.60 | 140,908 |
| Most Populous Countries in 1950 | 0 | - | 4.45 | 65,884 |
| Confederate States of the U.S. Civil War | 0 | - | 4.90 | 107,409 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 189,556 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 57,981 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 64,695 |
| Countries of the Japanese Empire | 0 | - | 4.96 | 78,974 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 52,976 |
| U.S. States with the Lowest Population Density | 0 | - | 4.89 | 76,670 |
| Countries Settled by Vikings | 0 | - | 4.93 | 104,075 |
| Most Populous World Capitals | 0 | - | 4.89 | 131,714 |
| WWII Geography | 0 | - | 4.75 | 91,903 |
| Countries that Bordered the USSR | 0 | - | 4.91 | 133,045 |
| Biggest European Cities by Century | 0 | - | 4.96 | 109,543 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 84,644 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 74,564 |
| Former Countries | 0 | - | 4.60 | 116,557 |
| Capitals of Most Populated Countries | 0 | - | 4.96 | 110,400 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 116,420 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 231,252 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 57,261 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 60,311 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.95 | 59,658 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.93 | 62,769 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.60 | 60,654 |
| Biggest Axis-Controlled Cities | 0 | - | 4.24 | 32,202 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 61,650 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 36,770 |
| Five Most Populated Cities by Continent | 0 | - | 4.95 | 152,477 |
| Neutral European Countries of WWII | 0 | - | 4.93 | 117,023 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 82,358 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.79 | 47,816 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 124,975 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.92 | 122,777 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 127,285 |
| Top 10 Least Populous U.S. States | 0 | - | 4.93 | 150,783 |
| Cities of China (With Some Help) | 0 | - | 4.83 | 25,191 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.90 | 39,469 |
| Biggest Cities with Exceptions | 0 | - | 4.88 | 44,705 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 226,959 |
| Countries with Megacities | 0 | - | 4.99 | 181,734 |
| Countries of Europe by Population | 0 | - | 4.98 | 113,613 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 176,417 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.95 | 133,034 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 141,758 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.83 | 41,007 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.93 | 85,585 |
| Biggest World Cities in 1850 | 0 | - | 4.53 | 49,151 |
| Megacities on a World Map | 0 | - | 4.98 | 205,879 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 69,252 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 181,968 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 99,654 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.85 | 76,957 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.79 | 40,274 |
| Most Populous Countries in 1800 | 0 | - | 4.28 | 34,663 |
| Most Populous Countries by Year | 0 | - | 4.71 | 83,063 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.96 | 83,979 |
| Countries of Europe After World War II | 0 | - | 4.97 | 151,804 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 120,430 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 88,777 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.97 | 57,435 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.98 | 74,528 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 86,607 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 332,384 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 136,166 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 466,390 |
| Megacities on an Empty Map | 0 | - | 4.96 | 80,472 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.97 | 55,074 |
| Most Recently-Settled Countries | 0 | - | 4.88 | 46,127 |
| Biggest Roman Empire Countries | 0 | - | 4.84 | 76,353 |
| Biggest Mongol Empire Countries | 0 | - | 4.90 | 63,284 |
| All 3M Cities on the World Map | 0 | - | 4.93 | 56,958 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.91 | 23,762 |
| All Cities in India with Population of 1 Million | 0 | - | 4.82 | 35,427 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.93 | 58,086 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 100,868 |
| Soviet Union Country Quiz | 0 | - | 4.83 | 59,552 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.97 | 161,177 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 78,517 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 90,474 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 70,986 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.83 | 56,631 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.89 | 62,511 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.90 | 49,969 |
| First Countries to Reach 5 Million People | 0 | - | 4.89 | 102,214 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.47 | 55,816 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.52 | 52,827 |
| Biggest Cities in Deserts | 0 | - | 4.93 | 39,142 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 274,836 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 85,023 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.92 | 64,314 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 123,538 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 89,036 |
| Countries with the Most People Bordering Them | 0 | - | 4.96 | 69,046 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.90 | 46,888 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 121,771 |
| Former Flags | 0 | - | 4.97 | 73,873 |
| 500 Biggest US Cities | 0 | - | 4.84 | 82,532 |
| Countries of the World in 1900 | 0 | - | 4.85 | 56,239 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 60,773 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 153,741 |
| Biggest Cities in France - Extreme | 0 | - | 4.84 | 35,431 |
| Louisiana Purchase with a Map | 0 | - | 4.94 | 31,876 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.84 | 60,541 |
| Countries in the Byzantine Empire | 0 | - | 4.92 | 61,169 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 77,307 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 98,497 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 112,204 |
| Densest Countries Bordering Each Other | 0 | - | 4.91 | 59,766 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 84,103 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 78,699 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 86,795 |
| Battle to Country | 0 | - | 4.86 | 31,840 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 88,990 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 70,255 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.57 | 22,666 |
| Countries by Former Name | 0 | - | 4.98 | 86,079 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 62,101 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.85 | 54,018 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.82 | 46,636 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 35,304 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.39 | 20,559 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.92 | 36,920 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.96 | 47,763 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.90 | 39,988 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 62,617 |
| Countries by Population Range - Tile Select | 0 | - | 4.82 | 45,588 |
| Countries by Founding Story | 0 | - | 4.90 | 50,350 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 92,837 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 73,229 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 53,368 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 106,671 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 69,587 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.99 | 55,216 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.95 | 76,644 |
| Countries of the World in 1444 | 0 | - | 4.98 | 44,079 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.92 | 49,047 |
| Largest Cities once part of the Byzantine Empire | 0 | - | 4.85 | 15,385 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.96 | 50,334 |
| 100 Biggest Soviet Cities in 1989 with a Map | 0 | - | 4.93 | 20,750 |
| Former Country Flag-Shape Picture Quiz | 0 | - | 4.98 | 56,241 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.97 | 23,701 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 53,709 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.97 | 65,254 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.91 | 39,174 |
