| Quiz | Points | Best | Rating | Takes |
|---|
| Biggest Cities in the United States | 0 | - | 4.93 | 707,018 |
| U.S. State Capitals Quiz | 0 | - | 4.99 | 1,336,339 |
| South America Capitals Quiz | 0 | - | 4.99 | 360,095 |
| Biggest Cities in Texas | 0 | - | 4.20 | 94,906 |
| Biggest Cities in Washington State | 0 | - | 4.33 | 24,886 |
| Biggest Urban Areas in the UK | 0 | - | 4.34 | 156,660 |
| Biggest Cities in New Jersey | 0 | - | 3.97 | 22,084 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 287,604 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.54 | 89,773 |
| Biggest English-Speaking Cities | 0 | - | 4.39 | 127,703 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.84 | 99,039 |
| Biggest Cities by Language | 0 | - | 4.95 | 193,668 |
| Biggest Nordic Cities | 0 | - | 4.35 | 56,472 |
| Biggest Mediterranean Cities | 0 | - | 4.73 | 69,248 |
| Biggest Cities in Japan | 0 | - | 4.72 | 66,500 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 132,741 |
| Biggest Cities in Russia | 0 | - | 4.48 | 68,713 |
| States of Mexico | 0 | - | 4.92 | 106,261 |
| Biggest Cities in Brazil | 0 | - | 4.54 | 41,606 |
| Biggest Cities in Poland | 0 | - | 4.72 | 40,102 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.38 | 10,644 |
| Colombia Country Quiz | 0 | - | 4.87 | 28,672 |
| Biggest Cities Starting With A | 0 | - | 4.54 | 86,878 |
| Biggest Cities Starting With B | 0 | - | 4.38 | 120,821 |
| Biggest Cities Starting With D | 0 | - | 4.46 | 84,642 |
| Biggest Cities Starting With H | 0 | - | 4.48 | 75,379 |
| Biggest Cities Starting With L | 0 | - | 4.42 | 84,880 |
| Biggest Cities Starting With M | 0 | - | 4.47 | 98,591 |
| Biggest Cities Starting With P | 0 | - | 4.44 | 87,436 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 20,983 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.34 | 75,028 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.31 | 62,396 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.23 | 70,193 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.10 | 76,440 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.10 | 61,317 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.06 | 57,178 |
| 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 | 62,302 |
| Biggest U.S. Cities A-Z | 0 | - | 4.54 | 109,019 |
| Biggest World Cities A-Z | 0 | - | 4.38 | 166,777 |
| Biggest Cities in France | 0 | - | 4.52 | 161,296 |
| Biggest Cities in Spain | 0 | - | 4.64 | 132,682 |
| Biggest Cities in Italy | 0 | - | 4.57 | 188,787 |
| Biggest Cities in California | 0 | - | 4.30 | 119,793 |
| Biggest Cities in Florida | 0 | - | 4.13 | 61,383 |
| Capitals of Canadian Provinces | 0 | - | 4.88 | 65,446 |
| Biggest Cities in the World Quiz | 0 | - | 4.84 | 570,584 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 19,843 |
| Biggest Cities in Africa Quiz | 0 | - | 4.88 | 84,031 |
| Biggest Cities in Ohio | 0 | - | 4.33 | 41,264 |
| Biggest Cities in The Netherlands | 0 | - | 4.42 | 33,672 |
| Biggest Cities in Michigan | 0 | - | 3.99 | 29,853 |
| Biggest Cities in New York State | 0 | - | 4.20 | 51,177 |
| Biggest Cities in Europe | 0 | - | 4.57 | 403,265 |
| 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 | 108,681 |
| Biggest Cities in Sweden | 0 | - | 4.71 | 24,543 |
| Central American Countries | 0 | - | 4.96 | 122,285 |
| North America Capitals Quiz | 0 | - | 4.99 | 154,569 |
| Countries Bordering Brazil | 0 | - | 4.97 | 104,148 |
| Biggest Cities in China | 0 | - | 4.42 | 118,081 |
| Biggest Cities in Pennsylvania | 0 | - | 4.10 | 39,034 |
| Biggest Cities in Germany | 0 | - | 4.94 | 226,082 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.40 | 48,396 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 134,418 |
| Biggest City in Every Country | 0 | - | 4.97 | 66,750 |
| Biggest Cities in Louisiana | 0 | - | 4.03 | 16,329 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.88 | 53,400 |
| Biggest Cities in Colorado | 0 | - | 3.97 | 27,059 |
| Biggest Cities in Arizona | 0 | - | 4.24 | 24,738 |
| Biggest Cities in Virginia | 0 | - | 4.16 | 20,299 |
| 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 | 20,568 |
| 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 | 14,180 |
| 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 | 121,488 |
| 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 | 85,546 |
| Biggest Cities in Switzerland | 0 | - | 4.55 | 38,197 |
| Biggest European Cities by Letter | 0 | - | 4.43 | 109,638 |
| Biggest Cities in India | 0 | - | 4.51 | 54,787 |
| Biggest Cities in Asia | 0 | - | 4.87 | 85,863 |
| Biggest City by Island | 0 | - | 4.49 | 42,189 |
| Biggest Cities in History | 0 | - | 4.49 | 70,458 |
| Biggest Cities by Trait #1 | 0 | - | 4.44 | 39,808 |
| Brazil Country Quiz | 0 | - | 4.49 | 75,329 |
| Argentina Country Quiz | 0 | - | 4.52 | 45,639 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,273 |
| Five Biggest Cities by Country | 0 | - | 4.76 | 122,284 |
| Central America and Caribbean Map Quiz | 0 | - | 4.85 | 787,886 |
| Mexico States Map Quiz | 0 | - | 4.82 | 77,669 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,176 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,151 |
| Caribbean Countries and Territories | 0 | - | 4.87 | 85,234 |
| States of Brazil | 0 | - | 4.96 | 49,199 |
| Brazil States Map Quiz | 0 | - | 4.84 | 30,338 |
| Brazil Cities Map Quiz | 0 | - | 4.71 | 29,390 |
| Venezuela Country Quiz | 0 | - | 4.38 | 23,443 |
| U.S. States with the Lowest Population Density | 0 | - | 4.90 | 74,492 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.49 | 51,828 |
| Biggest Cities in Portugal | 0 | - | 4.35 | 15,919 |
| Most Populous World Capitals | 0 | - | 4.89 | 127,810 |
| South America Map Quiz | 0 | - | 4.99 | 1,255,820 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.40 | 25,429 |
| South American Physical Geography | 0 | - | 4.51 | 15,081 |
| Biggest European Cities by Century | 0 | - | 4.96 | 104,996 |
| U.S. Cities by Hispanic Population | 0 | - | 4.22 | 22,864 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,112 |
| Chile Country Quiz | 0 | - | 4.76 | 29,890 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,580 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 103,254 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 58,154 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.73 | 55,420 |
| Cities of Ireland | 0 | - | 4.39 | 35,631 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,805 |
| Five Most Populated Cities by Continent | 0 | - | 4.95 | 145,903 |
| Peru Country Quiz | 0 | - | 4.50 | 37,825 |
| Haiti Country Quiz | 0 | - | 4.84 | 24,861 |
| Biggest Cities in the World - Extreme | 0 | - | 4.97 | 73,015 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,308 |
| South American Geography Quiz #1 | 0 | - | 4.52 | 27,943 |
| South American Geography Quiz #2 | 0 | - | 4.64 | 33,327 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.92 | 118,080 |
| Paraguay Country Quiz | 0 | - | 4.48 | 18,964 |
| US State Capitals Quiz - No Hints | 0 | - | 4.97 | 72,830 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 123,192 |
| Top 10 Least Populous U.S. States | 0 | - | 4.95 | 146,612 |
| Cities of China (With Some Help) | 0 | - | 4.76 | 23,497 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.90 | 33,851 |
| Biggest Cities with Exceptions | 0 | - | 4.87 | 42,672 |
| Bolivia Country Quiz | 0 | - | 4.55 | 19,929 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.89 | 32,395 |
| South America Flags Map Quiz | 0 | - | 4.96 | 50,189 |
| Countries of South America with an Empty Map | 0 | - | 4.95 | 66,932 |
| Biggest Cities in the UK | 0 | - | 4.42 | 79,631 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 81,634 |
| South American Cities on the Map | 0 | - | 4.48 | 21,907 |
| Biggest World Cities in 1850 | 0 | - | 4.52 | 47,507 |
| Megacities on a World Map | 0 | - | 4.97 | 199,349 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 171,945 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.78 | 48,783 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 95,191 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.85 | 73,481 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,624 |
| Ten Northernmost Megacities | 0 | - | 4.41 | 44,037 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.93 | 74,429 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 308,652 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 100,912 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.37 | 23,238 |
| U.S. State Capitals Map Quiz | 0 | - | 4.89 | 108,782 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.44 | 49,966 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.56 | 34,649 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 433,458 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 80,208 |
| Megacities on an Empty Map | 0 | - | 4.96 | 77,032 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.97 | 51,909 |
| Uruguay Country Quiz | 0 | - | 4.83 | 24,547 |
| All 3M Cities on the World Map | 0 | - | 4.94 | 53,734 |
| All Cities in China with Population of 1 Million | 0 | - | 4.66 | 27,450 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.89 | 36,707 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.92 | 20,823 |
| All Cities in India with Population of 1 Million | 0 | - | 4.80 | 32,434 |
| Ecuador Country Quiz | 0 | - | 4.54 | 22,188 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.93 | 55,133 |
| 50 Busiest Air Routes from Los Angeles | 0 | - | 4.87 | 40,311 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.46 | 42,341 |
| Biggest Trading Partners - Colombia | 0 | - | 4.65 | 20,823 |
| Two Largest Cities by First Two Letters | 0 | - | 4.65 | 56,125 |
| U.S. States by Second Most Populous City | 0 | - | 4.40 | 36,494 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.71 | 61,986 |
| Most Guessed U.S. Cities | 0 | - | 4.91 | 69,430 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,220 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.52 | 43,293 |
| Biggest Cities in Deserts | 0 | - | 4.86 | 37,413 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 260,959 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.93 | 79,422 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.92 | 61,743 |
| Biggest "Saint" Cities - United States | 0 | - | 4.38 | 30,532 |
| Which City in Latin America? | 0 | - | 4.64 | 34,594 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.49 | 30,465 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 38,524 |
| 500 Biggest US Cities | 0 | - | 4.90 | 75,659 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.46 | 26,424 |
| Which City in Canada? | 0 | - | 4.84 | 39,713 |
| Saint Lucia Country Quiz | 0 | - | 4.64 | 13,847 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 54,173 |
| Random State Capital to U.S. State | 0 | - | 4.82 | 58,455 |
| Countries that Beat Brazil | 0 | - | 4.35 | 39,521 |
| Biggest Cities in France - Extreme | 0 | - | 4.84 | 31,763 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.82 | 45,071 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 50,836 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.72 | 23,631 |
