| Quiz | Points | Best | Rating | Takes |
|---|
| Biggest Cities in the United States | 0 | - | 4.93 | 705,034 |
| U.S. State Capitals Quiz | 0 | - | 4.99 | 1,332,356 |
| South America Capitals Quiz | 0 | - | 4.99 | 359,013 |
| Biggest Cities in Texas | 0 | - | 4.20 | 94,766 |
| Biggest Cities in Washington State | 0 | - | 4.33 | 24,828 |
| Biggest Urban Areas in the UK | 0 | - | 4.34 | 156,488 |
| Biggest Cities in New Jersey | 0 | - | 3.97 | 22,057 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 286,917 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.54 | 89,549 |
| Biggest English-Speaking Cities | 0 | - | 4.39 | 127,559 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.82 | 98,879 |
| Biggest Cities by Language | 0 | - | 4.95 | 193,360 |
| Biggest Nordic Cities | 0 | - | 4.35 | 56,409 |
| Biggest Mediterranean Cities | 0 | - | 4.73 | 69,123 |
| Biggest Cities in Japan | 0 | - | 4.73 | 66,338 |
| Biggest US Cities by Decade | 0 | - | 4.93 | 132,486 |
| Biggest Cities in Russia | 0 | - | 4.48 | 68,569 |
| States of Mexico | 0 | - | 4.91 | 105,705 |
| Biggest Cities in Brazil | 0 | - | 4.54 | 41,408 |
| Biggest Cities in Poland | 0 | - | 4.73 | 39,945 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.36 | 10,605 |
| Colombia Country Quiz | 0 | - | 4.87 | 28,582 |
| Biggest Cities Starting With A | 0 | - | 4.54 | 86,633 |
| Biggest Cities Starting With B | 0 | - | 4.38 | 120,558 |
| Biggest Cities Starting With D | 0 | - | 4.46 | 84,466 |
| Biggest Cities Starting With H | 0 | - | 4.49 | 75,135 |
| Biggest Cities Starting With L | 0 | - | 4.42 | 84,641 |
| Biggest Cities Starting With M | 0 | - | 4.47 | 98,313 |
| Biggest Cities Starting With P | 0 | - | 4.44 | 87,195 |
| Biggest Cities in Mexico | 0 | - | 4.51 | 20,876 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.36 | 74,878 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.31 | 62,270 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.23 | 70,079 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.10 | 76,344 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.10 | 61,241 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.09 | 57,112 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.10 | 17,817 |
| Biggest U.S. Cities Starting with P | 0 | - | 3.81 | 52,644 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.18 | 55,332 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.21 | 62,221 |
| Biggest U.S. Cities A-Z | 0 | - | 4.53 | 108,779 |
| Biggest World Cities A-Z | 0 | - | 4.38 | 166,457 |
| Biggest Cities in France | 0 | - | 4.50 | 160,814 |
| Biggest Cities in Spain | 0 | - | 4.65 | 132,287 |
| Biggest Cities in Italy | 0 | - | 4.57 | 188,354 |
| Biggest Cities in California | 0 | - | 4.32 | 119,600 |
| Biggest Cities in Florida | 0 | - | 4.13 | 61,248 |
| Capitals of Canadian Provinces | 0 | - | 4.88 | 65,276 |
| Biggest Cities in the World Quiz | 0 | - | 4.84 | 568,997 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 19,781 |
| Biggest Cities in Africa Quiz | 0 | - | 4.88 | 83,845 |
| Biggest Cities in Ohio | 0 | - | 4.33 | 41,198 |
| Biggest Cities in The Netherlands | 0 | - | 4.42 | 33,545 |
| Biggest Cities in Michigan | 0 | - | 3.99 | 29,817 |
| Biggest Cities in New York State | 0 | - | 4.23 | 51,111 |
| Biggest Cities in Europe | 0 | - | 4.57 | 402,372 |
| Biggest Cities in Indiana | 0 | - | 4.22 | 17,444 |
| Biggest Cities in Tennessee | 0 | - | 4.20 | 17,194 |
| Biggest Cities in Canada | 0 | - | 4.56 | 108,414 |
| Biggest Cities in Sweden | 0 | - | 4.67 | 24,444 |
| Central American Countries | 0 | - | 4.96 | 121,846 |
| North America Capitals Quiz | 0 | - | 4.99 | 154,018 |
| Countries Bordering Brazil | 0 | - | 4.97 | 103,911 |
| Biggest Cities in China | 0 | - | 4.41 | 117,558 |
| Biggest Cities in Pennsylvania | 0 | - | 4.10 | 38,975 |
| Biggest Cities in Germany | 0 | - | 4.94 | 225,482 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.40 | 48,306 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 134,116 |
| Biggest City in Every Country | 0 | - | 4.97 | 66,584 |
| Biggest Cities in Louisiana | 0 | - | 4.03 | 16,299 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.88 | 53,263 |
| Biggest Cities in Colorado | 0 | - | 3.97 | 27,021 |
| Biggest Cities in Arizona | 0 | - | 4.24 | 24,671 |
| Biggest Cities in Virginia | 0 | - | 4.16 | 20,260 |
| Biggest Cities in Illinois | 0 | - | 4.29 | 21,389 |
| Biggest Cities in North Carolina | 0 | - | 4.48 | 25,673 |
| Biggest Cities in Wisconsin | 0 | - | 4.41 | 20,505 |
| Biggest Cities in Georgia | 0 | - | 3.72 | 19,331 |
| Biggest Cities in Massachusetts | 0 | - | 4.27 | 20,104 |
| Biggest Cities in Missouri | 0 | - | 4.18 | 14,149 |
| Biggest Cities in Oregon | 0 | - | 4.02 | 16,619 |
| Biggest Cities in Alaska | 0 | - | 4.38 | 16,733 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.48 | 121,177 |
| Biggest City by Time Zone | 0 | - | 4.74 | 49,663 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.42 | 78,046 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,261 |
| Biggest Cities in Switzerland | 0 | - | 4.55 | 38,093 |
| Biggest European Cities by Letter | 0 | - | 4.43 | 109,504 |
| Biggest Cities in India | 0 | - | 4.52 | 54,658 |
| Biggest Cities in Asia | 0 | - | 4.87 | 85,553 |
| Biggest City by Island | 0 | - | 4.49 | 42,089 |
| Biggest Cities in History | 0 | - | 4.49 | 70,137 |
| Biggest Cities by Trait #1 | 0 | - | 4.44 | 39,726 |
| Brazil Country Quiz | 0 | - | 4.49 | 75,169 |
| Argentina Country Quiz | 0 | - | 4.52 | 45,510 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,126 |
| Five Biggest Cities by Country | 0 | - | 4.76 | 122,011 |
| Central America and Caribbean Map Quiz | 0 | - | 4.85 | 786,372 |
| Mexico States Map Quiz | 0 | - | 4.81 | 77,471 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,086 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,061 |
| Caribbean Countries and Territories | 0 | - | 4.87 | 85,097 |
| States of Brazil | 0 | - | 4.96 | 48,988 |
| Brazil States Map Quiz | 0 | - | 4.84 | 30,238 |
| Brazil Cities Map Quiz | 0 | - | 4.72 | 29,303 |
| Venezuela Country Quiz | 0 | - | 4.38 | 23,383 |
| U.S. States with the Lowest Population Density | 0 | - | 4.90 | 74,381 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.49 | 51,745 |
| Biggest Cities in Portugal | 0 | - | 4.35 | 15,853 |
| Most Populous World Capitals | 0 | - | 4.89 | 127,607 |
| South America Map Quiz | 0 | - | 4.99 | 1,253,020 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.40 | 25,358 |
| South American Physical Geography | 0 | - | 4.51 | 15,015 |
| Biggest European Cities by Century | 0 | - | 4.97 | 104,772 |
| U.S. Cities by Hispanic Population | 0 | - | 4.22 | 22,825 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.91 | 58,959 |
| Chile Country Quiz | 0 | - | 4.77 | 29,787 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,465 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 103,062 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 57,943 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.73 | 55,238 |
| Cities of Ireland | 0 | - | 4.39 | 35,576 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,742 |
| Five Most Populated Cities by Continent | 0 | - | 4.95 | 145,494 |
| Peru Country Quiz | 0 | - | 4.50 | 37,730 |
| Haiti Country Quiz | 0 | - | 4.84 | 24,776 |
| Biggest Cities in the World - Extreme | 0 | - | 4.97 | 72,808 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,236 |
| South American Geography Quiz #1 | 0 | - | 4.52 | 27,882 |
| South American Geography Quiz #2 | 0 | - | 4.64 | 33,235 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.92 | 117,741 |
| Paraguay Country Quiz | 0 | - | 4.48 | 18,891 |
| US State Capitals Quiz - No Hints | 0 | - | 4.97 | 72,701 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 122,955 |
| Top 10 Least Populous U.S. States | 0 | - | 4.95 | 146,364 |
| Cities of China (With Some Help) | 0 | - | 4.77 | 23,363 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 33,698 |
| Biggest Cities with Exceptions | 0 | - | 4.87 | 42,563 |
| Bolivia Country Quiz | 0 | - | 4.55 | 19,864 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.88 | 32,298 |
| South America Flags Map Quiz | 0 | - | 4.96 | 49,815 |
| Countries of South America with an Empty Map | 0 | - | 4.95 | 66,625 |
| Biggest Cities in the UK | 0 | - | 4.42 | 79,388 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.93 | 81,408 |
| South American Cities on the Map | 0 | - | 4.48 | 21,816 |
| Biggest World Cities in 1850 | 0 | - | 4.52 | 47,408 |
| Megacities on a World Map | 0 | - | 4.97 | 198,479 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 153,304 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.78 | 48,692 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 94,063 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.85 | 72,802 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,512 |
| Ten Northernmost Megacities | 0 | - | 4.41 | 43,978 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.93 | 73,500 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 300,478 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 100,604 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.37 | 23,173 |
| U.S. State Capitals Map Quiz | 0 | - | 4.90 | 108,445 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.44 | 49,850 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.54 | 34,568 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 432,171 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 79,814 |
| Megacities on an Empty Map | 0 | - | 4.96 | 76,810 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.97 | 51,726 |
| Uruguay Country Quiz | 0 | - | 4.83 | 24,434 |
| All 3M Cities on the World Map | 0 | - | 4.93 | 53,463 |
| All Cities in China with Population of 1 Million | 0 | - | 4.65 | 27,134 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.89 | 36,595 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.92 | 20,478 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 28,924 |
| Ecuador Country Quiz | 0 | - | 4.54 | 22,120 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.93 | 54,945 |
| 50 Busiest Air Routes from Los Angeles | 0 | - | 4.87 | 40,127 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 42,140 |
| Biggest Trading Partners - Colombia | 0 | - | 4.65 | 20,762 |
| Two Largest Cities by First Two Letters | 0 | - | 4.65 | 55,978 |
| U.S. States by Second Most Populous City | 0 | - | 4.40 | 36,428 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.71 | 61,863 |
| Most Guessed U.S. Cities | 0 | - | 4.91 | 69,207 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,122 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.52 | 43,194 |
| Biggest Cities in Deserts | 0 | - | 4.86 | 37,316 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 260,020 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.93 | 79,041 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.92 | 61,601 |
| Biggest "Saint" Cities - United States | 0 | - | 4.38 | 30,474 |
| Which City in Latin America? | 0 | - | 4.64 | 34,491 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.49 | 30,336 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 38,366 |
| 500 Biggest US Cities | 0 | - | 4.90 | 75,224 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.46 | 26,357 |
| Which City in Canada? | 0 | - | 4.84 | 39,629 |
| Saint Lucia Country Quiz | 0 | - | 4.64 | 13,797 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 53,968 |
| Random State Capital to U.S. State | 0 | - | 4.81 | 58,234 |
| Countries that Beat Brazil | 0 | - | 4.35 | 39,389 |
| Biggest Cities in France - Extreme | 0 | - | 4.84 | 31,542 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.82 | 44,739 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 50,436 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.73 | 23,460 |
