| Quiz | Points | Best | Rating | Takes |
|---|
| Biggest Cities in the United States | 0 | - | 4.91 | 776,912 |
| U.S. State Capitals Quiz | 0 | - | 4.99 | 1,462,123 |
| South America Capitals Quiz | 0 | - | 4.99 | 399,763 |
| Biggest Cities in Texas | 0 | - | 4.23 | 108,310 |
| Biggest Cities in Washington State | 0 | - | 4.38 | 27,170 |
| Biggest Urban Areas in the UK | 0 | - | 4.38 | 163,571 |
| Biggest Cities in New Jersey | 0 | - | 4.04 | 24,092 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 311,628 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.63 | 95,800 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.84 | 105,349 |
| Biggest Cities by Language | 0 | - | 4.95 | 207,166 |
| Biggest Nordic Cities | 0 | - | 4.36 | 58,842 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 73,081 |
| Jewish Cities Quiz | 0 | - | 4.30 | 58,312 |
| Biggest Cities in Japan | 0 | - | 4.70 | 72,616 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 149,913 |
| Biggest Cities in Russia | 0 | - | 4.46 | 74,097 |
| States of Mexico | 0 | - | 4.93 | 128,967 |
| Biggest Cities in Brazil | 0 | - | 4.54 | 46,570 |
| Biggest Cities in Poland | 0 | - | 4.55 | 45,527 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.40 | 12,386 |
| Colombia Country Quiz | 0 | - | 4.89 | 32,805 |
| Biggest Cities in Mexico | 0 | - | 4.53 | 24,103 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.31 | 80,286 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.34 | 67,174 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.22 | 75,087 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.09 | 80,946 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.10 | 64,406 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.14 | 60,172 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.13 | 20,188 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.19 | 58,424 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.27 | 65,732 |
| Biggest U.S. Cities A-Z | 0 | - | 4.51 | 118,637 |
| Biggest World Cities A-Z | 0 | - | 4.38 | 178,770 |
| Biggest Cities in France | 0 | - | 4.48 | 178,830 |
| Biggest Cities in Spain | 0 | - | 4.51 | 146,495 |
| Biggest Cities in Italy | 0 | - | 4.61 | 207,397 |
| Biggest Cities in California | 0 | - | 4.34 | 126,868 |
| Biggest Cities in Florida | 0 | - | 4.18 | 65,423 |
| Biggest Cities in the World Quiz | 0 | - | 4.82 | 628,955 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 22,159 |
| Biggest Cities in Africa Quiz | 0 | - | 4.89 | 89,515 |
| Biggest Cities in Ohio | 0 | - | 4.35 | 44,484 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 47,522 |
| Biggest Cities in Michigan | 0 | - | 3.99 | 31,628 |
| Biggest Cities in New York State | 0 | - | 4.22 | 54,379 |
| Biggest Cities in Europe | 0 | - | 4.49 | 436,220 |
| Biggest Cities in Indiana | 0 | - | 4.25 | 19,124 |
| Biggest Cities in Tennessee | 0 | - | 4.22 | 18,627 |
| Biggest Cities in Canada | 0 | - | 4.63 | 116,290 |
| Biggest Cities in Sweden | 0 | - | 4.84 | 35,475 |
| Central American Countries | 0 | - | 4.96 | 132,966 |
| North America Capitals Quiz | 0 | - | 4.99 | 175,064 |
| Countries Bordering Brazil | 0 | - | 4.97 | 120,795 |
| Biggest Cities in China | 0 | - | 4.43 | 130,577 |
| Biggest Cities in Pennsylvania | 0 | - | 4.12 | 41,597 |
| Biggest Cities in Germany | 0 | - | 4.94 | 250,495 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.39 | 58,455 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 145,085 |
| Biggest City in Every Country | 0 | - | 4.97 | 73,680 |
| Biggest Cities in Louisiana | 0 | - | 4.03 | 17,675 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.86 | 58,494 |
| Biggest Cities in Colorado | 0 | - | 4.02 | 29,083 |
| Biggest Cities in Arizona | 0 | - | 4.21 | 27,386 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 22,144 |
| Biggest Cities in Illinois | 0 | - | 4.32 | 23,588 |
| Biggest Cities in North Carolina | 0 | - | 4.53 | 30,887 |
| Biggest Cities in Wisconsin | 0 | - | 4.44 | 22,625 |
| Biggest Cities in Georgia | 0 | - | 3.84 | 20,954 |
| Biggest Cities in Massachusetts | 0 | - | 4.34 | 26,491 |
| Biggest Cities in Missouri | 0 | - | 4.19 | 15,375 |
| Biggest Cities in Oregon | 0 | - | 4.06 | 18,113 |
| Biggest Cities in Alaska | 0 | - | 4.22 | 22,791 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.52 | 127,154 |
| Biggest English Cities by Century | 0 | - | 4.93 | 95,477 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 42,082 |
| Biggest European Cities by Letter | 0 | - | 4.51 | 115,723 |
| Biggest Cities in India | 0 | - | 4.60 | 60,177 |
| Biggest Cities in Asia | 0 | - | 4.92 | 92,032 |
| The Americas Geography by Letter - A | 0 | - | 4.27 | 41,066 |
| The Americas Geography by Letter - B | 0 | - | 4.47 | 47,919 |
| U.S. Cities A-Z | 0 | - | 4.25 | 30,112 |
| European Cities A-Z | 0 | - | 4.21 | 69,208 |
| British Places A-Z | 0 | - | 4.27 | 73,793 |
| The Americas Geography by Letter - C | 0 | - | 4.22 | 53,848 |
| Brazil Country Quiz | 0 | - | 4.49 | 87,899 |
| Argentina Country Quiz | 0 | - | 4.51 | 50,141 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 63,331 |
| The Americas Geography by Letter - M | 0 | - | 4.39 | 35,662 |
| Central America and Caribbean Map Quiz | 0 | - | 4.82 | 827,411 |
| Confederate States of the U.S. Civil War | 0 | - | 4.90 | 119,058 |
| The Americas Geography by Letter - S | 0 | - | 4.55 | 40,871 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 59,763 |
| States of Brazil | 0 | - | 4.97 | 62,028 |
| Brazil States Map Quiz | 0 | - | 4.84 | 36,416 |
| Brazil Cities Map Quiz | 0 | - | 4.60 | 32,458 |
| Venezuela Country Quiz | 0 | - | 4.47 | 26,172 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.51 | 61,766 |
| Biggest Cities in Portugal | 0 | - | 4.36 | 18,014 |
| The Americas Geography By Letter - H | 0 | - | 4.15 | 20,872 |
| The Americas Geography by Letter - P | 0 | - | 4.34 | 35,495 |
| The Americas Geography by Letter - T | 0 | - | 4.18 | 37,834 |
| Most Populous World Capitals | 0 | - | 4.90 | 135,543 |
| South America Map Quiz | 0 | - | 4.99 | 1,363,917 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.40 | 27,591 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.52 | 31,138 |
| South American Physical Geography | 0 | - | 4.55 | 16,871 |
| Biggest European Cities by Century | 0 | - | 4.96 | 114,552 |
| Countries Closest to United States A-Z | 0 | - | 4.74 | 92,743 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.92 | 170,268 |
| U.S. Cities by Hispanic Population | 0 | - | 4.24 | 24,029 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 67,563 |
| Chile Country Quiz | 0 | - | 4.74 | 33,699 |
| California A-Z | 0 | - | 4.43 | 27,362 |
| New York City A-Z | 0 | - | 4.11 | 29,512 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.63 | 62,937 |
| Biggest Axis-Controlled Cities | 0 | - | 4.25 | 33,019 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 111,433 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.93 | 64,992 |
| Cities of Ireland | 0 | - | 4.42 | 38,234 |
| Largest Cities in Alexander's Empire | 0 | - | 4.47 | 37,855 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 159,815 |
| Peru Country Quiz | 0 | - | 4.50 | 41,841 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 87,557 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.80 | 49,354 |
| South American Geography Quiz #1 | 0 | - | 4.52 | 29,984 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 36,049 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.93 | 127,114 |
| Paraguay Country Quiz | 0 | - | 4.48 | 21,447 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 143,517 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 155,681 |
| Cities of China (With Some Help) | 0 | - | 4.86 | 27,059 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.90 | 41,279 |
| Bolivia Country Quiz | 0 | - | 4.59 | 22,575 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.85 | 42,686 |
| Countries of South America with an Empty Map | 0 | - | 4.95 | 77,147 |
| Biggest Cities in the UK | 0 | - | 4.41 | 88,268 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 89,587 |
| South American Cities on the Map | 0 | - | 4.54 | 32,215 |
| Megacities on a World Map | 0 | - | 4.98 | 213,246 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 190,492 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 104,163 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.86 | 80,294 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.76 | 41,835 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 87,499 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 353,536 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 110,781 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.28 | 35,163 |
| U.S. State Capitals Map Quiz | 0 | - | 4.88 | 118,458 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.44 | 53,757 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.46 | 37,005 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 490,240 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.21 | 81,009 |
| Megacities on an Empty Map | 0 | - | 4.96 | 83,920 |
| All Cities in China with Population of 1 Million | 0 | - | 4.60 | 35,517 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.91 | 26,315 |
| All Cities in India with Population of 1 Million | 0 | - | 4.82 | 38,204 |
| Ecuador Country Quiz | 0 | - | 4.55 | 24,735 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.94 | 61,055 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.45 | 49,802 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.97 | 170,284 |
| Biggest Trading Partners - Colombia | 0 | - | 4.89 | 33,317 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 38,872 |
| Snowiest U.S. State Capitals | 0 | - | 4.40 | 26,806 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.62 | 42,756 |
| U.S. State Capitals with the Most Precipitation | 0 | - | 4.19 | 12,026 |
| U.S. State Capitals with the Least Precipitation | 0 | - | 4.36 | 22,327 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.70 | 66,540 |
| Most Guessed U.S. Cities | 0 | - | 4.91 | 86,552 |
| Most Guessed US State Capitals | 0 | - | 4.35 | 22,599 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.47 | 57,547 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.60 | 54,578 |
| Coldest U.S. State Capitals | 0 | - | 4.56 | 18,536 |
| Hottest U.S. State Capitals | 0 | - | 4.79 | 20,785 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 290,214 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 91,360 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 66,740 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 32,957 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.36 | 29,006 |
| Which City in Latin America? | 0 | - | 4.61 | 37,369 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.50 | 33,657 |
| U.S. State Capital Superlatives - Top 2 | 0 | - | 4.34 | 18,975 |
| Countries That Visit Brazil The Most | 0 | - | 4.96 | 43,435 |
| 500 Biggest US Cities | 0 | - | 4.85 | 89,945 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 28,029 |
| Saint Lucia Country Quiz | 0 | - | 4.60 | 15,537 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 74,629 |
| Countries that Beat Brazil | 0 | - | 4.36 | 43,451 |
| U.S. Cities by Wikipedia Descriptions | 0 | - | 4.41 | 31,029 |
| Cities by Wikipedia Descriptions #2 | 0 | - | 4.51 | 29,320 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 39,580 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.70 | 58,838 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.86 | 68,969 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.89 | 34,217 |
| Which South American Country? | 0 | - | 4.84 | 47,042 |
| Random Sequential U.S. States on a Map | 0 | - | 5.00 | 205,166 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.38 | 11,356 |
| Category Elimination - U.S. States #1 | 0 | - | 4.91 | 182,859 |
| Suriname Country Quiz | 0 | - | 4.59 | 16,947 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.58 | 23,712 |
