| Quiz | Points | Best | Rating | Takes |
|---|
| Biggest Cities in the United States | 0 | - | 4.93 | 704,437 |
| U.S. State Capitals Quiz | 0 | - | 4.99 | 1,331,068 |
| South America Capitals Quiz | 0 | - | 4.99 | 358,715 |
| Biggest Cities in Texas | 0 | - | 4.20 | 94,721 |
| Biggest Cities in Washington State | 0 | - | 4.33 | 24,800 |
| Biggest Urban Areas in the UK | 0 | - | 4.34 | 156,427 |
| Biggest Cities in New Jersey | 0 | - | 3.97 | 22,042 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 286,739 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.55 | 89,470 |
| Biggest English-Speaking Cities | 0 | - | 4.39 | 127,518 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.82 | 98,838 |
| Biggest Cities by Language | 0 | - | 4.95 | 193,262 |
| Biggest Nordic Cities | 0 | - | 4.35 | 56,395 |
| Biggest Mediterranean Cities | 0 | - | 4.73 | 69,093 |
| Biggest Cities in Japan | 0 | - | 4.73 | 66,298 |
| Biggest US Cities by Decade | 0 | - | 4.93 | 132,420 |
| Biggest Cities in Russia | 0 | - | 4.48 | 68,531 |
| States of Mexico | 0 | - | 4.91 | 105,540 |
| Biggest Cities in Brazil | 0 | - | 4.54 | 41,377 |
| Biggest Cities in Poland | 0 | - | 4.73 | 39,912 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.36 | 10,597 |
| Colombia Country Quiz | 0 | - | 4.87 | 28,557 |
| Biggest Cities Starting With A | 0 | - | 4.54 | 86,538 |
| Biggest Cities Starting With B | 0 | - | 4.38 | 120,451 |
| Biggest Cities Starting With D | 0 | - | 4.46 | 84,405 |
| Biggest Cities Starting With H | 0 | - | 4.49 | 75,050 |
| Biggest Cities Starting With L | 0 | - | 4.42 | 84,549 |
| Biggest Cities Starting With M | 0 | - | 4.47 | 98,207 |
| Biggest Cities Starting With P | 0 | - | 4.44 | 87,080 |
| Biggest Cities in Mexico | 0 | - | 4.51 | 20,843 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.36 | 74,781 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.31 | 62,186 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.23 | 69,999 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.10 | 76,022 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.10 | 61,194 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.09 | 57,078 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.10 | 17,783 |
| Biggest U.S. Cities Starting with P | 0 | - | 3.81 | 52,615 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.18 | 55,286 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.21 | 62,172 |
| Biggest U.S. Cities A-Z | 0 | - | 4.53 | 108,720 |
| Biggest World Cities A-Z | 0 | - | 4.38 | 166,360 |
| Biggest Cities in France | 0 | - | 4.50 | 160,655 |
| Biggest Cities in Spain | 0 | - | 4.65 | 132,194 |
| Biggest Cities in Italy | 0 | - | 4.57 | 188,214 |
| Biggest Cities in California | 0 | - | 4.32 | 119,553 |
| Biggest Cities in Florida | 0 | - | 4.13 | 61,218 |
| Capitals of Canadian Provinces | 0 | - | 4.87 | 65,243 |
| Biggest Cities in the World Quiz | 0 | - | 4.84 | 568,529 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 19,766 |
| Biggest Cities in Africa Quiz | 0 | - | 4.88 | 83,802 |
| Biggest Cities in Ohio | 0 | - | 4.33 | 41,169 |
| Biggest Cities in The Netherlands | 0 | - | 4.42 | 33,512 |
| Biggest Cities in Michigan | 0 | - | 3.99 | 29,803 |
| Biggest Cities in New York State | 0 | - | 4.23 | 51,086 |
| Biggest Cities in Europe | 0 | - | 4.57 | 402,096 |
| Biggest Cities in Indiana | 0 | - | 4.22 | 17,424 |
| Biggest Cities in Tennessee | 0 | - | 4.20 | 17,181 |
| Biggest Cities in Canada | 0 | - | 4.56 | 108,160 |
| Biggest Cities in Sweden | 0 | - | 4.67 | 24,410 |
| Central American Countries | 0 | - | 4.96 | 121,711 |
| North America Capitals Quiz | 0 | - | 4.99 | 153,858 |
| Countries Bordering Brazil | 0 | - | 4.97 | 103,845 |
| Biggest Cities in China | 0 | - | 4.41 | 117,433 |
| Biggest Cities in Pennsylvania | 0 | - | 4.10 | 38,954 |
| Biggest Cities in Germany | 0 | - | 4.94 | 225,287 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.40 | 48,280 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 134,033 |
| Biggest City in Every Country | 0 | - | 4.97 | 66,548 |
| Biggest Cities in Louisiana | 0 | - | 4.03 | 16,289 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.88 | 53,225 |
| Biggest Cities in Colorado | 0 | - | 3.97 | 27,003 |
| Biggest Cities in Arizona | 0 | - | 4.24 | 24,652 |
| Biggest Cities in Virginia | 0 | - | 4.16 | 20,248 |
| Biggest Cities in Illinois | 0 | - | 4.29 | 21,367 |
| Biggest Cities in North Carolina | 0 | - | 4.48 | 25,653 |
| Biggest Cities in Wisconsin | 0 | - | 4.41 | 20,488 |
| Biggest Cities in Georgia | 0 | - | 3.72 | 19,321 |
| Biggest Cities in Massachusetts | 0 | - | 4.27 | 20,085 |
| Biggest Cities in Missouri | 0 | - | 4.18 | 14,142 |
| Biggest Cities in Oregon | 0 | - | 4.02 | 16,599 |
| Biggest Cities in Alaska | 0 | - | 4.38 | 16,709 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.48 | 121,125 |
| Biggest City by Time Zone | 0 | - | 4.74 | 49,645 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.42 | 78,024 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,198 |
| Biggest Cities in Switzerland | 0 | - | 4.55 | 38,054 |
| Biggest European Cities by Letter | 0 | - | 4.43 | 109,470 |
| Biggest Cities in India | 0 | - | 4.52 | 54,619 |
| Biggest Cities in Asia | 0 | - | 4.87 | 85,517 |
| Biggest City by Island | 0 | - | 4.49 | 42,062 |
| Biggest Cities in History | 0 | - | 4.49 | 70,064 |
| Biggest Cities by Trait #1 | 0 | - | 4.43 | 39,702 |
| Brazil Country Quiz | 0 | - | 4.52 | 75,109 |
| Argentina Country Quiz | 0 | - | 4.53 | 45,479 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,085 |
| Five Biggest Cities by Country | 0 | - | 4.76 | 121,914 |
| Central America and Caribbean Map Quiz | 0 | - | 4.85 | 785,974 |
| Mexico States Map Quiz | 0 | - | 4.81 | 77,384 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,054 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,026 |
| Caribbean Countries and Territories | 0 | - | 4.87 | 85,051 |
| States of Brazil | 0 | - | 4.96 | 48,922 |
| Brazil States Map Quiz | 0 | - | 4.84 | 30,197 |
| Brazil Cities Map Quiz | 0 | - | 4.72 | 29,277 |
| Venezuela Country Quiz | 0 | - | 4.37 | 23,351 |
| U.S. States with the Lowest Population Density | 0 | - | 4.90 | 74,351 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.49 | 51,731 |
| Biggest Cities in Portugal | 0 | - | 4.35 | 15,840 |
| Most Populous World Capitals | 0 | - | 4.89 | 127,564 |
| South America Map Quiz | 0 | - | 4.99 | 1,251,941 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.40 | 25,341 |
| South American Physical Geography | 0 | - | 4.51 | 15,003 |
| Biggest European Cities by Century | 0 | - | 4.97 | 104,688 |
| U.S. Cities by Hispanic Population | 0 | - | 4.22 | 22,818 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.91 | 58,903 |
| Chile Country Quiz | 0 | - | 4.77 | 29,760 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,434 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 103,007 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 57,882 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.73 | 55,176 |
| Cities of Ireland | 0 | - | 4.39 | 35,560 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,726 |
| Five Most Populated Cities by Continent | 0 | - | 4.95 | 145,365 |
| Peru Country Quiz | 0 | - | 4.50 | 37,700 |
| Haiti Country Quiz | 0 | - | 4.84 | 24,749 |
| Biggest Cities in the World - Extreme | 0 | - | 4.97 | 72,753 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,215 |
| South American Geography Quiz #1 | 0 | - | 4.52 | 27,864 |
| South American Geography Quiz #2 | 0 | - | 4.64 | 33,209 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.92 | 117,675 |
| Paraguay Country Quiz | 0 | - | 4.48 | 18,876 |
| US State Capitals Quiz - No Hints | 0 | - | 4.97 | 72,645 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 122,882 |
| Top 10 Least Populous U.S. States | 0 | - | 4.95 | 146,307 |
| Cities of China (With Some Help) | 0 | - | 4.77 | 23,330 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 33,665 |
| Biggest Cities with Exceptions | 0 | - | 4.87 | 42,519 |
| Bolivia Country Quiz | 0 | - | 4.55 | 19,832 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.88 | 32,271 |
| South America Flags Map Quiz | 0 | - | 4.96 | 49,720 |
| Countries of South America with an Empty Map | 0 | - | 4.95 | 66,535 |
| Biggest Cities in the UK | 0 | - | 4.42 | 78,940 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.93 | 81,357 |
| South American Cities on the Map | 0 | - | 4.48 | 21,801 |
| Biggest World Cities in 1850 | 0 | - | 4.52 | 47,383 |
| Megacities on a World Map | 0 | - | 4.97 | 198,344 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 153,188 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.78 | 48,665 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 94,017 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.85 | 72,748 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.84 | 38,473 |
| Ten Northernmost Megacities | 0 | - | 4.41 | 43,960 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.93 | 73,450 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 300,181 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 100,525 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.37 | 23,153 |
| U.S. State Capitals Map Quiz | 0 | - | 4.90 | 108,292 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.44 | 49,820 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.54 | 34,548 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 431,732 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 79,736 |
| Megacities on an Empty Map | 0 | - | 4.96 | 76,748 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.97 | 51,670 |
| Uruguay Country Quiz | 0 | - | 4.83 | 24,417 |
| All 3M Cities on the World Map | 0 | - | 4.93 | 53,388 |
| All Cities in China with Population of 1 Million | 0 | - | 4.65 | 27,026 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.89 | 36,570 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.92 | 20,355 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 28,886 |
| Ecuador Country Quiz | 0 | - | 4.54 | 22,091 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.93 | 54,877 |
| 50 Busiest Air Routes from Los Angeles | 0 | - | 4.87 | 40,069 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 42,093 |
| Biggest Trading Partners - Colombia | 0 | - | 4.65 | 20,748 |
| Two Largest Cities by First Two Letters | 0 | - | 4.65 | 55,934 |
| U.S. States by Second Most Populous City | 0 | - | 4.40 | 36,408 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.71 | 61,824 |
| Most Guessed U.S. Cities | 0 | - | 4.91 | 69,139 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,094 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.52 | 43,160 |
| Biggest Cities in Deserts | 0 | - | 4.86 | 37,291 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 259,780 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.93 | 78,964 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.92 | 61,565 |
| Biggest "Saint" Cities - United States | 0 | - | 4.38 | 30,453 |
| Which City in Latin America? | 0 | - | 4.64 | 34,461 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.49 | 30,315 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 38,324 |
| 500 Biggest US Cities | 0 | - | 4.90 | 75,104 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.46 | 26,333 |
| Which City in Canada? | 0 | - | 4.84 | 39,607 |
| Saint Lucia Country Quiz | 0 | - | 4.64 | 13,778 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 53,924 |
| Random State Capital to U.S. State | 0 | - | 4.81 | 58,195 |
| Countries that Beat Brazil | 0 | - | 4.34 | 39,284 |
| Biggest Cities in France - Extreme | 0 | - | 4.84 | 31,496 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.82 | 44,676 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 50,329 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.73 | 23,407 |
