| Quiz | Points | Best | Rating | Takes |
|---|
| Biggest Cities in the United States | 0 | - | 4.93 | 706,979 |
| U.S. State Capitals Quiz | 0 | - | 4.99 | 1,336,242 |
| South America Capitals Quiz | 0 | - | 4.99 | 360,084 |
| Biggest Cities in Texas | 0 | - | 4.20 | 94,904 |
| Biggest Cities in Washington State | 0 | - | 4.33 | 24,884 |
| Biggest Urban Areas in the UK | 0 | - | 4.34 | 156,660 |
| Biggest Cities in New Jersey | 0 | - | 3.97 | 22,083 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 287,593 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.54 | 89,767 |
| Biggest English-Speaking Cities | 0 | - | 4.39 | 127,702 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.84 | 99,037 |
| Biggest Cities by Language | 0 | - | 4.95 | 193,662 |
| Biggest Nordic Cities | 0 | - | 4.35 | 56,470 |
| Biggest Mediterranean Cities | 0 | - | 4.73 | 69,247 |
| Biggest Cities in Japan | 0 | - | 4.72 | 66,497 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 132,734 |
| Biggest Cities in Russia | 0 | - | 4.48 | 68,710 |
| States of Mexico | 0 | - | 4.92 | 106,252 |
| Biggest Cities in Brazil | 0 | - | 4.54 | 41,603 |
| Biggest Cities in Poland | 0 | - | 4.72 | 40,096 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.38 | 10,642 |
| Colombia Country Quiz | 0 | - | 4.87 | 28,669 |
| Biggest Cities Starting With A | 0 | - | 4.54 | 86,873 |
| Biggest Cities Starting With B | 0 | - | 4.38 | 120,817 |
| Biggest Cities Starting With D | 0 | - | 4.46 | 84,639 |
| Biggest Cities Starting With H | 0 | - | 4.48 | 75,374 |
| Biggest Cities Starting With L | 0 | - | 4.42 | 84,877 |
| Biggest Cities Starting With M | 0 | - | 4.47 | 98,583 |
| Biggest Cities Starting With P | 0 | - | 4.44 | 87,433 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 20,977 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.34 | 75,024 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.31 | 62,395 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.23 | 70,191 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.10 | 76,439 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.10 | 61,316 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.06 | 57,177 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.10 | 17,875 |
| Biggest U.S. Cities Starting with P | 0 | - | 3.81 | 52,701 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.18 | 55,406 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.21 | 62,300 |
| Biggest U.S. Cities A-Z | 0 | - | 4.54 | 109,017 |
| Biggest World Cities A-Z | 0 | - | 4.38 | 166,776 |
| Biggest Cities in France | 0 | - | 4.52 | 161,292 |
| Biggest Cities in Spain | 0 | - | 4.64 | 132,676 |
| Biggest Cities in Italy | 0 | - | 4.57 | 188,779 |
| Biggest Cities in California | 0 | - | 4.30 | 119,789 |
| Biggest Cities in Florida | 0 | - | 4.13 | 61,374 |
| Capitals of Canadian Provinces | 0 | - | 4.88 | 65,444 |
| Biggest Cities in the World Quiz | 0 | - | 4.84 | 570,541 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 19,842 |
| Biggest Cities in Africa Quiz | 0 | - | 4.88 | 84,029 |
| Biggest Cities in Ohio | 0 | - | 4.33 | 41,263 |
| Biggest Cities in The Netherlands | 0 | - | 4.42 | 33,670 |
| Biggest Cities in Michigan | 0 | - | 3.99 | 29,853 |
| Biggest Cities in New York State | 0 | - | 4.20 | 51,176 |
| Biggest Cities in Europe | 0 | - | 4.57 | 403,254 |
| Biggest Cities in Indiana | 0 | - | 4.22 | 17,486 |
| Biggest Cities in Tennessee | 0 | - | 4.20 | 17,238 |
| Biggest Cities in Canada | 0 | - | 4.56 | 108,678 |
| Biggest Cities in Sweden | 0 | - | 4.71 | 24,543 |
| Central American Countries | 0 | - | 4.96 | 122,277 |
| North America Capitals Quiz | 0 | - | 4.99 | 154,566 |
| Countries Bordering Brazil | 0 | - | 4.97 | 104,144 |
| Biggest Cities in China | 0 | - | 4.42 | 118,076 |
| Biggest Cities in Pennsylvania | 0 | - | 4.10 | 39,032 |
| Biggest Cities in Germany | 0 | - | 4.94 | 226,073 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.40 | 48,396 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 134,415 |
| Biggest City in Every Country | 0 | - | 4.97 | 66,747 |
| Biggest Cities in Louisiana | 0 | - | 4.03 | 16,329 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.88 | 53,396 |
| Biggest Cities in Colorado | 0 | - | 3.97 | 27,059 |
| Biggest Cities in Arizona | 0 | - | 4.24 | 24,737 |
| Biggest Cities in Virginia | 0 | - | 4.16 | 20,297 |
| Biggest Cities in Illinois | 0 | - | 4.30 | 21,441 |
| Biggest Cities in North Carolina | 0 | - | 4.48 | 25,753 |
| Biggest Cities in Wisconsin | 0 | - | 4.35 | 20,565 |
| Biggest Cities in Georgia | 0 | - | 3.72 | 19,365 |
| Biggest Cities in Massachusetts | 0 | - | 4.27 | 20,146 |
| Biggest Cities in Missouri | 0 | - | 4.18 | 14,178 |
| Biggest Cities in Oregon | 0 | - | 4.02 | 16,678 |
| Biggest Cities in Alaska | 0 | - | 4.39 | 16,794 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.49 | 121,487 |
| Biggest City by Time Zone | 0 | - | 4.74 | 49,740 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.42 | 78,145 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,540 |
| Biggest Cities in Switzerland | 0 | - | 4.55 | 38,196 |
| Biggest European Cities by Letter | 0 | - | 4.43 | 109,636 |
| Biggest Cities in India | 0 | - | 4.51 | 54,786 |
| Biggest Cities in Asia | 0 | - | 4.87 | 85,859 |
| Biggest City by Island | 0 | - | 4.49 | 42,189 |
| Biggest Cities in History | 0 | - | 4.49 | 70,453 |
| Biggest Cities by Trait #1 | 0 | - | 4.44 | 39,808 |
| Brazil Country Quiz | 0 | - | 4.49 | 75,328 |
| Argentina Country Quiz | 0 | - | 4.52 | 45,636 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,273 |
| Five Biggest Cities by Country | 0 | - | 4.76 | 122,283 |
| Central America and Caribbean Map Quiz | 0 | - | 4.85 | 787,860 |
| Mexico States Map Quiz | 0 | - | 4.82 | 77,668 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,175 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,151 |
| Caribbean Countries and Territories | 0 | - | 4.87 | 85,232 |
| States of Brazil | 0 | - | 4.96 | 49,195 |
| Brazil States Map Quiz | 0 | - | 4.84 | 30,338 |
| Brazil Cities Map Quiz | 0 | - | 4.71 | 29,383 |
| Venezuela Country Quiz | 0 | - | 4.38 | 23,440 |
| U.S. States with the Lowest Population Density | 0 | - | 4.90 | 74,489 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.49 | 51,828 |
| Biggest Cities in Portugal | 0 | - | 4.35 | 15,917 |
| Most Populous World Capitals | 0 | - | 4.89 | 127,807 |
| South America Map Quiz | 0 | - | 4.99 | 1,255,746 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.40 | 25,428 |
| South American Physical Geography | 0 | - | 4.51 | 15,080 |
| Biggest European Cities by Century | 0 | - | 4.96 | 104,993 |
| U.S. Cities by Hispanic Population | 0 | - | 4.22 | 22,864 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,111 |
| Chile Country Quiz | 0 | - | 4.76 | 29,888 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,577 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 103,247 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 58,153 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.73 | 55,415 |
| Cities of Ireland | 0 | - | 4.39 | 35,631 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,804 |
| Five Most Populated Cities by Continent | 0 | - | 4.95 | 145,896 |
| Peru Country Quiz | 0 | - | 4.50 | 37,824 |
| Haiti Country Quiz | 0 | - | 4.84 | 24,860 |
| Biggest Cities in the World - Extreme | 0 | - | 4.97 | 73,013 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,306 |
| South American Geography Quiz #1 | 0 | - | 4.52 | 27,942 |
| South American Geography Quiz #2 | 0 | - | 4.64 | 33,326 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.92 | 118,065 |
| Paraguay Country Quiz | 0 | - | 4.48 | 18,962 |
| US State Capitals Quiz - No Hints | 0 | - | 4.97 | 72,828 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 123,189 |
| Top 10 Least Populous U.S. States | 0 | - | 4.95 | 146,609 |
| Cities of China (With Some Help) | 0 | - | 4.76 | 23,495 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.90 | 33,848 |
| Biggest Cities with Exceptions | 0 | - | 4.87 | 42,669 |
| Bolivia Country Quiz | 0 | - | 4.55 | 19,928 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.89 | 32,394 |
| South America Flags Map Quiz | 0 | - | 4.96 | 50,175 |
| Countries of South America with an Empty Map | 0 | - | 4.95 | 66,926 |
| Biggest Cities in the UK | 0 | - | 4.42 | 79,627 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 81,629 |
| South American Cities on the Map | 0 | - | 4.48 | 21,905 |
| Biggest World Cities in 1850 | 0 | - | 4.52 | 47,504 |
| Megacities on a World Map | 0 | - | 4.97 | 199,319 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 171,770 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.78 | 48,781 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 95,176 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.85 | 73,473 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,623 |
| Ten Northernmost Megacities | 0 | - | 4.41 | 44,037 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.93 | 74,416 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 308,413 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 100,896 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.37 | 23,237 |
| U.S. State Capitals Map Quiz | 0 | - | 4.89 | 108,771 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.44 | 49,963 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.56 | 34,649 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 433,436 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 80,206 |
| Megacities on an Empty Map | 0 | - | 4.96 | 77,029 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.97 | 51,909 |
| Uruguay Country Quiz | 0 | - | 4.83 | 24,540 |
| All 3M Cities on the World Map | 0 | - | 4.94 | 53,729 |
| All Cities in China with Population of 1 Million | 0 | - | 4.66 | 27,446 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.89 | 36,706 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.92 | 20,821 |
| All Cities in India with Population of 1 Million | 0 | - | 4.80 | 32,407 |
| Ecuador Country Quiz | 0 | - | 4.54 | 22,188 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.93 | 55,129 |
| 50 Busiest Air Routes from Los Angeles | 0 | - | 4.87 | 40,309 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.46 | 42,339 |
| Biggest Trading Partners - Colombia | 0 | - | 4.65 | 20,822 |
| Two Largest Cities by First Two Letters | 0 | - | 4.65 | 56,122 |
| U.S. States by Second Most Populous City | 0 | - | 4.40 | 36,491 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.71 | 61,986 |
| Most Guessed U.S. Cities | 0 | - | 4.91 | 69,424 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,219 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.52 | 43,292 |
| Biggest Cities in Deserts | 0 | - | 4.86 | 37,413 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 260,947 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.93 | 79,415 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.92 | 61,740 |
| Biggest "Saint" Cities - United States | 0 | - | 4.38 | 30,530 |
| Which City in Latin America? | 0 | - | 4.64 | 34,594 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.49 | 30,464 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 38,521 |
| 500 Biggest US Cities | 0 | - | 4.90 | 75,650 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.46 | 26,422 |
| Which City in Canada? | 0 | - | 4.84 | 39,711 |
| Saint Lucia Country Quiz | 0 | - | 4.64 | 13,844 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 54,170 |
| Random State Capital to U.S. State | 0 | - | 4.82 | 58,452 |
| Countries that Beat Brazil | 0 | - | 4.35 | 39,520 |
| Biggest Cities in France - Extreme | 0 | - | 4.84 | 31,758 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.82 | 45,065 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 50,831 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.72 | 23,628 |
