| Quiz | Points | Best | Rating | Takes |
|---|
| Biggest Cities in the United States | 0 | - | 4.93 | 707,117 |
| U.S. State Capitals Quiz | 0 | - | 4.99 | 1,336,538 |
| South America Capitals Quiz | 0 | - | 4.99 | 360,120 |
| Biggest Cities in Texas | 0 | - | 4.20 | 94,916 |
| Biggest Cities in Washington State | 0 | - | 4.33 | 24,888 |
| Biggest Urban Areas in the UK | 0 | - | 4.34 | 156,664 |
| Biggest Cities in New Jersey | 0 | - | 3.97 | 22,085 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 287,628 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.54 | 89,782 |
| Biggest English-Speaking Cities | 0 | - | 4.39 | 127,709 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.84 | 99,050 |
| Biggest Cities by Language | 0 | - | 4.95 | 193,689 |
| Biggest Nordic Cities | 0 | - | 4.35 | 56,474 |
| Biggest Mediterranean Cities | 0 | - | 4.73 | 69,253 |
| Biggest Cities in Japan | 0 | - | 4.72 | 66,503 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 132,749 |
| Biggest Cities in Russia | 0 | - | 4.48 | 68,719 |
| States of Mexico | 0 | - | 4.92 | 106,283 |
| Biggest Cities in Brazil | 0 | - | 4.54 | 41,609 |
| Biggest Cities in Poland | 0 | - | 4.73 | 40,104 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.38 | 10,645 |
| Colombia Country Quiz | 0 | - | 4.87 | 28,673 |
| Biggest Cities Starting With A | 0 | - | 4.54 | 86,891 |
| Biggest Cities Starting With B | 0 | - | 4.38 | 120,830 |
| Biggest Cities Starting With D | 0 | - | 4.46 | 84,652 |
| Biggest Cities Starting With H | 0 | - | 4.48 | 75,388 |
| Biggest Cities Starting With L | 0 | - | 4.42 | 84,890 |
| Biggest Cities Starting With M | 0 | - | 4.47 | 98,603 |
| Biggest Cities Starting With P | 0 | - | 4.44 | 87,448 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 20,992 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.34 | 75,033 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.31 | 62,401 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.23 | 70,197 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.10 | 76,443 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.10 | 61,319 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.06 | 57,182 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.10 | 17,876 |
| Biggest U.S. Cities Starting with P | 0 | - | 3.81 | 52,701 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.18 | 55,407 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.21 | 62,303 |
| Biggest U.S. Cities A-Z | 0 | - | 4.54 | 109,028 |
| Biggest World Cities A-Z | 0 | - | 4.37 | 166,797 |
| Biggest Cities in France | 0 | - | 4.52 | 161,313 |
| Biggest Cities in Spain | 0 | - | 4.64 | 132,692 |
| Biggest Cities in Italy | 0 | - | 4.57 | 188,800 |
| Biggest Cities in California | 0 | - | 4.30 | 119,801 |
| Biggest Cities in Florida | 0 | - | 4.13 | 61,390 |
| Capitals of Canadian Provinces | 0 | - | 4.88 | 65,450 |
| Biggest Cities in the World Quiz | 0 | - | 4.84 | 570,636 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 19,847 |
| Biggest Cities in Africa Quiz | 0 | - | 4.88 | 84,038 |
| Biggest Cities in Ohio | 0 | - | 4.33 | 41,266 |
| Biggest Cities in The Netherlands | 0 | - | 4.42 | 33,677 |
| Biggest Cities in Michigan | 0 | - | 3.99 | 29,856 |
| Biggest Cities in New York State | 0 | - | 4.20 | 51,181 |
| Biggest Cities in Europe | 0 | - | 4.57 | 403,294 |
| Biggest Cities in Indiana | 0 | - | 4.22 | 17,490 |
| Biggest Cities in Tennessee | 0 | - | 4.20 | 17,241 |
| Biggest Cities in Canada | 0 | - | 4.56 | 108,690 |
| Biggest Cities in Sweden | 0 | - | 4.71 | 24,547 |
| Central American Countries | 0 | - | 4.96 | 122,295 |
| North America Capitals Quiz | 0 | - | 4.99 | 154,579 |
| Countries Bordering Brazil | 0 | - | 4.97 | 104,156 |
| Biggest Cities in China | 0 | - | 4.42 | 118,095 |
| Biggest Cities in Pennsylvania | 0 | - | 4.10 | 39,034 |
| Biggest Cities in Germany | 0 | - | 4.94 | 226,101 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.40 | 48,400 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 134,437 |
| Biggest City in Every Country | 0 | - | 4.97 | 66,759 |
| Biggest Cities in Louisiana | 0 | - | 4.03 | 16,329 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.88 | 53,405 |
| Biggest Cities in Colorado | 0 | - | 3.97 | 27,061 |
| Biggest Cities in Arizona | 0 | - | 4.24 | 24,744 |
| Biggest Cities in Virginia | 0 | - | 4.16 | 20,302 |
| Biggest Cities in Illinois | 0 | - | 4.30 | 21,447 |
| Biggest Cities in North Carolina | 0 | - | 4.48 | 25,755 |
| Biggest Cities in Wisconsin | 0 | - | 4.35 | 20,569 |
| Biggest Cities in Georgia | 0 | - | 3.72 | 19,368 |
| Biggest Cities in Massachusetts | 0 | - | 4.27 | 20,151 |
| Biggest Cities in Missouri | 0 | - | 4.18 | 14,185 |
| Biggest Cities in Oregon | 0 | - | 4.02 | 16,680 |
| Biggest Cities in Alaska | 0 | - | 4.39 | 16,795 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.49 | 121,495 |
| Biggest City by Time Zone | 0 | - | 4.74 | 49,744 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.42 | 78,149 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,557 |
| Biggest Cities in Switzerland | 0 | - | 4.55 | 38,202 |
| Biggest European Cities by Letter | 0 | - | 4.43 | 109,644 |
| Biggest Cities in India | 0 | - | 4.51 | 54,794 |
| Biggest Cities in Asia | 0 | - | 4.87 | 85,872 |
| Biggest City by Island | 0 | - | 4.49 | 42,193 |
| Biggest Cities in History | 0 | - | 4.49 | 70,465 |
| Biggest Cities by Trait #1 | 0 | - | 4.44 | 39,811 |
| Brazil Country Quiz | 0 | - | 4.49 | 75,337 |
| Argentina Country Quiz | 0 | - | 4.52 | 45,643 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,277 |
| Five Biggest Cities by Country | 0 | - | 4.76 | 122,296 |
| Central America and Caribbean Map Quiz | 0 | - | 4.86 | 787,909 |
| Mexico States Map Quiz | 0 | - | 4.82 | 77,676 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,182 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,156 |
| Caribbean Countries and Territories | 0 | - | 4.87 | 85,239 |
| States of Brazil | 0 | - | 4.96 | 49,217 |
| Brazil States Map Quiz | 0 | - | 4.84 | 30,342 |
| Brazil Cities Map Quiz | 0 | - | 4.71 | 29,393 |
| Venezuela Country Quiz | 0 | - | 4.38 | 23,446 |
| U.S. States with the Lowest Population Density | 0 | - | 4.90 | 74,500 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.49 | 51,832 |
| Biggest Cities in Portugal | 0 | - | 4.35 | 15,921 |
| Most Populous World Capitals | 0 | - | 4.89 | 127,816 |
| South America Map Quiz | 0 | - | 4.99 | 1,255,951 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.40 | 25,433 |
| South American Physical Geography | 0 | - | 4.51 | 15,084 |
| Biggest European Cities by Century | 0 | - | 4.96 | 105,007 |
| U.S. Cities by Hispanic Population | 0 | - | 4.22 | 22,864 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,129 |
| Chile Country Quiz | 0 | - | 4.77 | 29,896 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,585 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 103,265 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 58,160 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.73 | 55,424 |
| Cities of Ireland | 0 | - | 4.40 | 35,632 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,807 |
| Five Most Populated Cities by Continent | 0 | - | 4.95 | 145,915 |
| Peru Country Quiz | 0 | - | 4.50 | 37,828 |
| Haiti Country Quiz | 0 | - | 4.84 | 24,865 |
| Biggest Cities in the World - Extreme | 0 | - | 4.97 | 73,021 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,308 |
| South American Geography Quiz #1 | 0 | - | 4.52 | 27,949 |
| South American Geography Quiz #2 | 0 | - | 4.64 | 33,329 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.93 | 118,094 |
| Paraguay Country Quiz | 0 | - | 4.48 | 18,967 |
| US State Capitals Quiz - No Hints | 0 | - | 4.97 | 72,837 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 123,204 |
| Top 10 Least Populous U.S. States | 0 | - | 4.95 | 146,621 |
| Cities of China (With Some Help) | 0 | - | 4.77 | 23,502 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.90 | 33,855 |
| Biggest Cities with Exceptions | 0 | - | 4.87 | 42,678 |
| Bolivia Country Quiz | 0 | - | 4.55 | 19,935 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.89 | 32,399 |
| South America Flags Map Quiz | 0 | - | 4.96 | 50,205 |
| Countries of South America with an Empty Map | 0 | - | 4.95 | 66,948 |
| Biggest Cities in the UK | 0 | - | 4.42 | 79,638 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 81,639 |
| South American Cities on the Map | 0 | - | 4.48 | 21,909 |
| Biggest World Cities in 1850 | 0 | - | 4.52 | 47,514 |
| Megacities on a World Map | 0 | - | 4.97 | 199,411 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 172,363 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.78 | 48,788 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 95,224 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.85 | 73,494 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,626 |
| Ten Northernmost Megacities | 0 | - | 4.41 | 44,039 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.93 | 74,446 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 309,175 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 100,921 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.37 | 23,241 |
| U.S. State Capitals Map Quiz | 0 | - | 4.89 | 108,788 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.44 | 49,972 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.56 | 34,654 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 433,538 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 80,219 |
| Megacities on an Empty Map | 0 | - | 4.96 | 77,041 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.97 | 51,917 |
| Uruguay Country Quiz | 0 | - | 4.83 | 24,550 |
| All 3M Cities on the World Map | 0 | - | 4.94 | 53,745 |
| All Cities in China with Population of 1 Million | 0 | - | 4.66 | 27,459 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.89 | 36,714 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.93 | 20,843 |
| All Cities in India with Population of 1 Million | 0 | - | 4.80 | 32,503 |
| Ecuador Country Quiz | 0 | - | 4.54 | 22,190 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.93 | 55,140 |
| 50 Busiest Air Routes from Los Angeles | 0 | - | 4.87 | 40,315 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.46 | 42,349 |
| Biggest Trading Partners - Colombia | 0 | - | 4.65 | 20,827 |
| Two Largest Cities by First Two Letters | 0 | - | 4.65 | 56,128 |
| U.S. States by Second Most Populous City | 0 | - | 4.40 | 36,497 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.71 | 61,989 |
| Most Guessed U.S. Cities | 0 | - | 4.91 | 69,438 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,225 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.52 | 43,297 |
| Biggest Cities in Deserts | 0 | - | 4.86 | 37,416 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 261,000 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.93 | 79,437 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.92 | 61,751 |
| Biggest "Saint" Cities - United States | 0 | - | 4.38 | 30,536 |
| Which City in Latin America? | 0 | - | 4.64 | 34,595 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.49 | 30,467 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 38,531 |
| 500 Biggest US Cities | 0 | - | 4.90 | 75,681 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.46 | 26,424 |
| Which City in Canada? | 0 | - | 4.84 | 39,716 |
| Saint Lucia Country Quiz | 0 | - | 4.64 | 13,847 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 54,178 |
| Random State Capital to U.S. State | 0 | - | 4.82 | 58,461 |
| Countries that Beat Brazil | 0 | - | 4.35 | 39,524 |
| Biggest Cities in France - Extreme | 0 | - | 4.84 | 31,772 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.82 | 45,074 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 50,849 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.73 | 23,634 |
