| Quiz | Points | Best | Rating | Takes |
|---|
| Biggest Cities in the United States | 0 | - | 4.91 | 797,271 |
| U.S. State Capitals Quiz | 0 | - | 4.99 | 1,499,453 |
| Biggest Cities in Texas | 0 | - | 4.24 | 110,171 |
| Biggest Cities in Washington State | 0 | - | 4.38 | 27,603 |
| Biggest Urban Areas in the UK | 0 | - | 4.36 | 166,095 |
| Biggest Cities in New Jersey | 0 | - | 4.05 | 24,586 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 317,857 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.85 | 107,149 |
| Biggest Cities by Language | 0 | - | 4.95 | 210,794 |
| Biggest Nordic Cities | 0 | - | 4.35 | 59,332 |
| Biggest Mediterranean Cities | 0 | - | 4.60 | 74,029 |
| Biggest Cities in Japan | 0 | - | 4.70 | 74,104 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 152,501 |
| Biggest Cities in Russia | 0 | - | 4.46 | 75,278 |
| Biggest Cities in Brazil | 0 | - | 4.54 | 47,521 |
| Biggest Cities in Poland | 0 | - | 4.56 | 47,008 |
| Countries that Border China | 0 | - | 4.96 | 229,908 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.41 | 12,748 |
| Biggest Cities Starting With A | 0 | - | 4.47 | 110,039 |
| Biggest Cities Starting With D | 0 | - | 4.47 | 105,362 |
| Biggest Cities Starting With L | 0 | - | 4.42 | 108,198 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 126,009 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 112,372 |
| Biggest Cities in Mexico | 0 | - | 4.54 | 28,120 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.31 | 82,062 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.30 | 68,667 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.23 | 76,751 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.09 | 82,450 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.12 | 65,338 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.15 | 61,089 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.15 | 20,916 |
| Biggest U.S. Cities Starting with P | 0 | - | 3.86 | 55,480 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.19 | 59,343 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.27 | 66,749 |
| Biggest U.S. Cities A-Z | 0 | - | 4.51 | 121,015 |
| Biggest World Cities A-Z | 0 | - | 4.41 | 188,442 |
| Biggest Cities in France | 0 | - | 4.62 | 194,793 |
| Biggest Cities in Spain | 0 | - | 4.48 | 150,534 |
| Biggest Cities in Italy | 0 | - | 4.62 | 212,925 |
| Biggest Cities in California | 0 | - | 4.34 | 128,939 |
| Biggest Cities in Florida | 0 | - | 4.19 | 66,587 |
| Biggest Cities in the World Quiz | 0 | - | 4.84 | 652,891 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 22,508 |
| Biggest Cities in Ohio | 0 | - | 4.36 | 45,219 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 49,022 |
| Biggest Cities in Michigan | 0 | - | 3.97 | 32,012 |
| Biggest Cities in New York State | 0 | - | 4.23 | 55,233 |
| Biggest Cities in Europe | 0 | - | 4.50 | 444,547 |
| Biggest Cities in Indiana | 0 | - | 4.28 | 19,496 |
| Biggest Cities in Tennessee | 0 | - | 4.24 | 18,893 |
| Biggest Cities in Canada | 0 | - | 4.68 | 118,501 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 36,578 |
| Countries Bordering China Since 1914 | 0 | - | 4.90 | 86,546 |
| Asia Capitals Quiz | 0 | - | 4.98 | 577,610 |
| Biggest Cities in China | 0 | - | 4.44 | 134,544 |
| Asian Cities by Clue | 0 | - | 4.68 | 24,671 |
| Biggest Cities in Pennsylvania | 0 | - | 4.14 | 42,253 |
| Biggest Cities in Germany | 0 | - | 4.94 | 257,621 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.40 | 59,509 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 148,173 |
| Biggest City in Every Country | 0 | - | 4.98 | 75,232 |
| Biggest Cities in Louisiana | 0 | - | 4.06 | 17,955 |
| Biggest Cities in Colorado | 0 | - | 4.03 | 29,578 |
| Biggest Cities in Arizona | 0 | - | 4.22 | 27,992 |
| Biggest Cities in Virginia | 0 | - | 4.23 | 22,587 |
| Biggest Cities in Illinois | 0 | - | 4.33 | 24,083 |
| Biggest Cities in North Carolina | 0 | - | 4.53 | 31,495 |
| Biggest Cities in Wisconsin | 0 | - | 4.45 | 23,094 |
| Biggest Cities in Georgia | 0 | - | 3.86 | 21,301 |
| Biggest Cities in Massachusetts | 0 | - | 4.35 | 27,099 |
| Biggest Cities in Missouri | 0 | - | 4.20 | 15,636 |
| Biggest Cities in Oregon | 0 | - | 4.10 | 18,459 |
| Biggest Cities in Alaska | 0 | - | 4.23 | 23,212 |
| Biggest English Cities by Century | 0 | - | 4.93 | 97,748 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 42,884 |
| Biggest European Cities by Letter | 0 | - | 4.52 | 117,301 |
| Biggest Cities in India | 0 | - | 4.61 | 61,317 |
| Biggest Cities in Asia | 0 | - | 4.93 | 93,759 |
| Japanese Prefectures | 0 | - | 4.97 | 101,864 |
| North Korea Country Quiz | 0 | - | 3.93 | 29,331 |
| China Country Quiz | 0 | - | 4.35 | 102,004 |
| Japan Country Quiz | 0 | - | 4.91 | 116,585 |
| Asia Capital to Country | 0 | - | 4.95 | 103,609 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 64,065 |
| Five Biggest Cities by Country | 0 | - | 4.50 | 149,595 |
| China Cities Map Quiz | 0 | - | 4.82 | 86,898 |
| Provinces of China Map Quiz | 0 | - | 4.96 | 82,182 |
| Provinces of China | 0 | - | 4.97 | 148,353 |
| South Korea Country Quiz | 0 | - | 4.64 | 70,389 |
| Hong Kong Facts | 0 | - | 4.43 | 27,555 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 60,804 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 96,861 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.51 | 62,445 |
| Biggest Cities in Portugal | 0 | - | 4.36 | 18,486 |
| Countries Closest to Japan | 0 | - | 4.94 | 125,068 |
| Most Populous World Capitals | 0 | - | 4.91 | 143,533 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.42 | 28,120 |
| Biggest European Cities by Century | 0 | - | 4.96 | 116,728 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 79,064 |
| U.S. Cities by Hispanic Population | 0 | - | 4.24 | 24,297 |
| Overseas Chinese Population | 0 | - | 4.54 | 39,613 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 69,595 |
| China A-Z | 0 | - | 4.49 | 58,954 |
| Japan A-Z | 0 | - | 4.46 | 38,087 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.63 | 64,164 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 66,447 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.82 | 62,448 |
| Cities of Ireland | 0 | - | 4.43 | 39,051 |
| Four Main Islands of Japan | 0 | - | 4.47 | 23,693 |
| Largest Cities in Alexander's Empire | 0 | - | 4.48 | 38,353 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 163,508 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 89,215 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 50,156 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.93 | 129,027 |
| Cities of China (With Some Help) | 0 | - | 4.88 | 27,692 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.91 | 42,210 |
| Biggest Cities with Exceptions | 0 | - | 4.84 | 51,225 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 157,660 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.85 | 43,332 |
| Asian Capitals - Map Quiz | 0 | - | 4.96 | 49,401 |
| Biggest Cities in the UK | 0 | - | 4.41 | 91,339 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 91,813 |
| Asian Cities by Map #1 | 0 | - | 4.49 | 38,648 |
| Megacities on a World Map | 0 | - | 4.98 | 216,707 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 195,184 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.84 | 56,631 |
| Asian Capitals by Map | 0 | - | 4.98 | 44,504 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 106,809 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.91 | 86,530 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.70 | 42,239 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 89,444 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 362,496 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.29 | 36,268 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.44 | 54,869 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.46 | 37,450 |
| World Capitals Closest to Bangkok | 0 | - | 4.93 | 37,690 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 502,706 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.21 | 86,526 |
| Megacities on an Empty Map | 0 | - | 4.96 | 85,763 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.88 | 45,764 |
| Middle East Capital Cities Quiz | 0 | - | 4.95 | 76,419 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.97 | 58,781 |
| Southeast Asian Cities by Map | 0 | - | 4.68 | 24,610 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 66,230 |
| All 3M Cities on the World Map | 0 | - | 4.94 | 61,742 |
| All Cities in China with Population of 1 Million | 0 | - | 4.61 | 37,051 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.92 | 27,674 |
| All Cities in India with Population of 1 Million | 0 | - | 4.82 | 39,664 |
| Asian Coastal Capitals | 0 | - | 4.52 | 19,927 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.94 | 62,467 |
| Most-Visited Countries by Japanese | 0 | - | 4.95 | 52,212 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.44 | 51,974 |
| Biggest Trading Partners - China | 0 | - | 4.97 | 68,878 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.92 | 82,984 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 39,641 |
| Chinese Geography on the Map | 0 | - | 4.53 | 21,755 |
| Most Guessed Asian Capitals | 0 | - | 4.50 | 62,656 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.70 | 67,720 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.51 | 73,600 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.60 | 55,590 |
| Biggest Cities in Deserts | 0 | - | 4.93 | 41,240 |
| Flags of Countries that Border China | 0 | - | 4.92 | 80,020 |
| Closest Countries to North Korea | 0 | - | 4.91 | 102,554 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 297,640 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 94,473 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.92 | 68,032 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 33,500 |
| Which City in the Middle East? | 0 | - | 4.48 | 50,267 |
| Japan by Picture | 0 | - | 4.41 | 25,662 |
| China by Picture | 0 | - | 4.50 | 53,016 |
| Countries that Visit Japan the Most | 0 | - | 4.93 | 68,155 |
| 500 Biggest US Cities | 0 | - | 4.83 | 93,999 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 28,407 |
| Saint Lucia Country Quiz | 0 | - | 4.60 | 15,934 |
| Every 1,000,000+ City on a Map | 0 | - | 4.98 | 80,004 |
| Random Asian Capital to Country | 0 | - | 4.95 | 87,306 |
| Random Asian Country to Capital | 0 | - | 4.91 | 84,215 |
| Countries that Beat China | 0 | - | 4.50 | 97,674 |
| Biggest Cities in France - Extreme | 0 | - | 4.90 | 41,907 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.76 | 61,955 |
| North Korea... or South Korea? | 0 | - | 4.45 | 74,057 |
| Random Asian City to Country | 0 | - | 4.42 | 33,272 |
| Taiwan Country Quiz | 0 | - | 4.82 | 38,894 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.88 | 72,809 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 91,088 |
| China Multiple Choice | 0 | - | 4.41 | 34,871 |
| Asian Cities by Wikipedia Descriptions | 0 | - | 4.56 | 23,897 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.60 | 24,183 |
| Countries Closest to Taiwan | 0 | - | 4.76 | 73,413 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.57 | 34,831 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.89 | 57,963 |
| Random Asian Capitals on a Map | 0 | - | 4.80 | 44,115 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 32,037 |
| Largest Nordic Cities on a Map | 0 | - | 4.61 | 21,723 |
| Turkmenistan Country Quiz | 0 | - | 4.80 | 22,490 |
| Hong Kong A-Z | 0 | - | 4.52 | 13,439 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.47 | 20,231 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.82 | 50,854 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.39 | 22,047 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.53 | 35,951 |
