| Quiz | Points | Best | Rating | Takes |
|---|
| Biggest Cities in the United States | 0 | - | 4.93 | 707,350 |
| U.S. State Capitals Quiz | 0 | - | 4.99 | 1,336,977 |
| South America Capitals Quiz | 0 | - | 4.99 | 360,233 |
| Biggest Cities in Texas | 0 | - | 4.20 | 94,934 |
| Biggest Cities in Washington State | 0 | - | 4.33 | 24,894 |
| Biggest Urban Areas in the UK | 0 | - | 4.34 | 156,684 |
| Biggest Cities in New Jersey | 0 | - | 3.97 | 22,090 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 287,689 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.55 | 89,799 |
| Biggest English-Speaking Cities | 0 | - | 4.39 | 127,731 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.84 | 99,067 |
| Biggest Cities by Language | 0 | - | 4.95 | 193,960 |
| Biggest Nordic Cities | 0 | - | 4.35 | 56,480 |
| Biggest Mediterranean Cities | 0 | - | 4.73 | 69,265 |
| Biggest Cities in Japan | 0 | - | 4.73 | 66,519 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 132,759 |
| Biggest Cities in Russia | 0 | - | 4.48 | 68,736 |
| States of Mexico | 0 | - | 4.92 | 106,336 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 41,626 |
| Biggest Cities in Poland | 0 | - | 4.73 | 40,120 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.38 | 10,649 |
| Colombia Country Quiz | 0 | - | 4.87 | 28,683 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 86,920 |
| Biggest Cities Starting With B | 0 | - | 4.38 | 120,854 |
| Biggest Cities Starting With D | 0 | - | 4.46 | 84,676 |
| Biggest Cities Starting With H | 0 | - | 4.48 | 75,417 |
| Biggest Cities Starting With L | 0 | - | 4.42 | 84,908 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 98,637 |
| Biggest Cities Starting With P | 0 | - | 4.44 | 87,479 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 20,998 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.34 | 75,042 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.31 | 62,415 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.23 | 70,206 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.10 | 76,455 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.10 | 61,330 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.06 | 57,192 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.10 | 17,885 |
| Biggest U.S. Cities Starting with P | 0 | - | 3.81 | 52,708 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.18 | 55,417 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.21 | 62,320 |
| Biggest U.S. Cities A-Z | 0 | - | 4.54 | 109,053 |
| Biggest World Cities A-Z | 0 | - | 4.38 | 166,834 |
| Biggest Cities in France | 0 | - | 4.52 | 161,354 |
| Biggest Cities in Spain | 0 | - | 4.64 | 132,733 |
| Biggest Cities in Italy | 0 | - | 4.57 | 188,869 |
| Biggest Cities in California | 0 | - | 4.30 | 119,829 |
| Biggest Cities in Florida | 0 | - | 4.13 | 61,411 |
| Capitals of Canadian Provinces | 0 | - | 4.88 | 65,463 |
| Biggest Cities in the World Quiz | 0 | - | 4.84 | 570,808 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 19,854 |
| Biggest Cities in Africa Quiz | 0 | - | 4.88 | 84,057 |
| Biggest Cities in Ohio | 0 | - | 4.33 | 41,282 |
| Biggest Cities in The Netherlands | 0 | - | 4.42 | 33,678 |
| Biggest Cities in Michigan | 0 | - | 3.99 | 29,860 |
| Biggest Cities in New York State | 0 | - | 4.20 | 51,200 |
| Biggest Cities in Europe | 0 | - | 4.63 | 403,381 |
| Biggest Cities in Indiana | 0 | - | 4.22 | 17,495 |
| Biggest Cities in Tennessee | 0 | - | 4.20 | 17,244 |
| Biggest Cities in Canada | 0 | - | 4.57 | 108,718 |
| Biggest Cities in Sweden | 0 | - | 4.71 | 24,559 |
| Central American Countries | 0 | - | 4.96 | 122,324 |
| North America Capitals Quiz | 0 | - | 4.99 | 154,654 |
| Countries Bordering Brazil | 0 | - | 4.97 | 104,176 |
| Biggest Cities in China | 0 | - | 4.43 | 118,137 |
| Biggest Cities in Pennsylvania | 0 | - | 4.10 | 39,045 |
| Biggest Cities in Germany | 0 | - | 4.94 | 226,227 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.40 | 48,405 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 134,467 |
| Biggest City in Every Country | 0 | - | 4.97 | 66,775 |
| Biggest Cities in Louisiana | 0 | - | 4.03 | 16,333 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.88 | 53,424 |
| Biggest Cities in Colorado | 0 | - | 3.97 | 27,072 |
| Biggest Cities in Arizona | 0 | - | 4.24 | 24,754 |
| Biggest Cities in Virginia | 0 | - | 4.16 | 20,308 |
| Biggest Cities in Illinois | 0 | - | 4.30 | 21,461 |
| Biggest Cities in North Carolina | 0 | - | 4.48 | 25,768 |
| Biggest Cities in Wisconsin | 0 | - | 4.35 | 20,575 |
| Biggest Cities in Georgia | 0 | - | 3.72 | 19,371 |
| Biggest Cities in Massachusetts | 0 | - | 4.27 | 20,158 |
| Biggest Cities in Missouri | 0 | - | 4.18 | 14,194 |
| Biggest Cities in Oregon | 0 | - | 4.02 | 16,684 |
| Biggest Cities in Alaska | 0 | - | 4.39 | 16,801 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.50 | 121,505 |
| Biggest City by Time Zone | 0 | - | 4.74 | 49,758 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.42 | 78,159 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,588 |
| Biggest Cities in Switzerland | 0 | - | 4.55 | 38,217 |
| Biggest European Cities by Letter | 0 | - | 4.43 | 109,660 |
| Biggest Cities in India | 0 | - | 4.52 | 54,808 |
| Biggest Cities in Asia | 0 | - | 4.87 | 85,900 |
| Biggest City by Island | 0 | - | 4.49 | 42,196 |
| Biggest Cities in History | 0 | - | 4.49 | 70,493 |
| Biggest Cities by Trait #1 | 0 | - | 4.44 | 39,820 |
| Brazil Country Quiz | 0 | - | 4.49 | 75,355 |
| Argentina Country Quiz | 0 | - | 4.53 | 45,654 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,294 |
| Five Biggest Cities by Country | 0 | - | 4.76 | 122,324 |
| Central America and Caribbean Map Quiz | 0 | - | 4.86 | 787,988 |
| Mexico States Map Quiz | 0 | - | 4.82 | 77,693 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,194 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,162 |
| Caribbean Countries and Territories | 0 | - | 4.87 | 85,248 |
| States of Brazil | 0 | - | 4.96 | 49,258 |
| Brazil States Map Quiz | 0 | - | 4.84 | 30,356 |
| Brazil Cities Map Quiz | 0 | - | 4.71 | 29,405 |
| Venezuela Country Quiz | 0 | - | 4.38 | 23,456 |
| U.S. States with the Lowest Population Density | 0 | - | 4.90 | 74,510 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.49 | 52,379 |
| Biggest Cities in Portugal | 0 | - | 4.35 | 15,927 |
| Most Populous World Capitals | 0 | - | 4.89 | 127,862 |
| South America Map Quiz | 0 | - | 4.99 | 1,256,308 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.40 | 25,438 |
| South American Physical Geography | 0 | - | 4.51 | 15,085 |
| Biggest European Cities by Century | 0 | - | 4.96 | 105,026 |
| U.S. Cities by Hispanic Population | 0 | - | 4.22 | 22,869 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,147 |
| Chile Country Quiz | 0 | - | 4.77 | 29,910 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,596 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 103,292 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 58,175 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.73 | 55,442 |
| Cities of Ireland | 0 | - | 4.40 | 35,634 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,814 |
| Five Most Populated Cities by Continent | 0 | - | 4.95 | 145,972 |
| Peru Country Quiz | 0 | - | 4.50 | 37,844 |
| Haiti Country Quiz | 0 | - | 4.84 | 24,879 |
| Biggest Cities in the World - Extreme | 0 | - | 4.97 | 73,037 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,315 |
| South American Geography Quiz #1 | 0 | - | 4.52 | 27,956 |
| South American Geography Quiz #2 | 0 | - | 4.64 | 33,336 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.93 | 118,131 |
| Paraguay Country Quiz | 0 | - | 4.48 | 18,979 |
| US State Capitals Quiz - No Hints | 0 | - | 4.97 | 72,852 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 123,224 |
| Top 10 Least Populous U.S. States | 0 | - | 4.95 | 146,643 |
| Cities of China (With Some Help) | 0 | - | 4.77 | 23,515 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.90 | 33,879 |
| Biggest Cities with Exceptions | 0 | - | 4.87 | 42,697 |
| Bolivia Country Quiz | 0 | - | 4.56 | 19,949 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.89 | 32,404 |
| South America Flags Map Quiz | 0 | - | 4.97 | 50,233 |
| Countries of South America with an Empty Map | 0 | - | 4.95 | 66,973 |
| Biggest Cities in the UK | 0 | - | 4.42 | 79,664 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 81,667 |
| South American Cities on the Map | 0 | - | 4.48 | 21,919 |
| Biggest World Cities in 1850 | 0 | - | 4.52 | 47,524 |
| Megacities on a World Map | 0 | - | 4.97 | 199,460 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 172,964 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.78 | 48,797 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 95,281 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.85 | 73,531 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,644 |
| Ten Northernmost Megacities | 0 | - | 4.41 | 44,047 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.93 | 74,470 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 310,359 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 100,961 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.37 | 23,252 |
| U.S. State Capitals Map Quiz | 0 | - | 4.89 | 108,811 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.44 | 49,984 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.57 | 34,662 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 433,716 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 80,238 |
| Megacities on an Empty Map | 0 | - | 4.96 | 77,056 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.97 | 51,936 |
| Uruguay Country Quiz | 0 | - | 4.83 | 24,562 |
| All 3M Cities on the World Map | 0 | - | 4.94 | 53,782 |
| All Cities in China with Population of 1 Million | 0 | - | 4.66 | 27,483 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.89 | 36,719 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.93 | 20,875 |
| All Cities in India with Population of 1 Million | 0 | - | 4.80 | 32,604 |
| Ecuador Country Quiz | 0 | - | 4.54 | 22,196 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.93 | 55,163 |
| 50 Busiest Air Routes from Los Angeles | 0 | - | 4.87 | 40,333 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.46 | 42,372 |
| Biggest Trading Partners - Colombia | 0 | - | 4.65 | 20,837 |
| Two Largest Cities by First Two Letters | 0 | - | 4.65 | 56,138 |
| U.S. States by Second Most Populous City | 0 | - | 4.40 | 36,502 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.71 | 62,005 |
| Most Guessed U.S. Cities | 0 | - | 4.91 | 69,459 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,234 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.53 | 43,312 |
| Biggest Cities in Deserts | 0 | - | 4.86 | 37,440 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 261,145 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.93 | 79,479 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.92 | 61,771 |
| Biggest "Saint" Cities - United States | 0 | - | 4.38 | 30,546 |
| Which City in Latin America? | 0 | - | 4.64 | 34,605 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.49 | 30,478 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 38,543 |
| 500 Biggest US Cities | 0 | - | 4.88 | 75,715 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.46 | 26,426 |
| Which City in Canada? | 0 | - | 4.84 | 39,721 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 13,850 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 54,204 |
| Random State Capital to U.S. State | 0 | - | 4.82 | 58,469 |
| Countries that Beat Brazil | 0 | - | 4.35 | 39,535 |
| Biggest Cities in France - Extreme | 0 | - | 4.84 | 31,798 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.82 | 45,108 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 50,889 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.73 | 23,652 |
