| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,594 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 125,224 |
| Europe Capital to Country | 0 | - | 4.99 | 248,848 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,107 |
| European Capitals by Map | 0 | - | 4.99 | 137,676 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,577 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,948 |
| European Coastal Capitals | 0 | - | 4.95 | 90,091 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 222,743 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,334 |
| Official Cities in the UK | 0 | - | 4.89 | 282,050 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,687 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,562 |
| European Capitals Furthest from the Sea | 0 | - | 4.91 | 81,914 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,980 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 93,890 |
| Cities in European History #1 | 0 | - | 4.63 | 133,534 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,621 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 146,083 |
| Name a Valid European Capital | 0 | - | 4.95 | 151,616 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,902 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,439 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,346 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,287 |
| Random European Capital to Country | 0 | - | 4.98 | 189,747 |
| Random European Country to Capital | 0 | - | 4.92 | 147,842 |
| European Capitals by Airport Code | 0 | - | 4.93 | 35,784 |
| Name a City - European Countries | 0 | - | 4.91 | 64,816 |
| Africa Capitals Quiz | 0 | - | 4.99 | 733,516 |
| Asia Capitals Quiz | 0 | - | 4.98 | 688,916 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,199 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 71,892 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,232 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,073 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,068 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 74,422 |
| Former Capitals | 0 | - | 4.88 | 71,276 |
| Asia Capital to Country | 0 | - | 4.96 | 126,150 |
| African Capitals by Map | 0 | - | 4.99 | 132,802 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,707 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,349 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 268,186 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,581 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,280 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,714 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,331 |
| South America Capitals Quiz | 0 | - | 5.00 | 479,111 |
| North America Capitals Quiz | 0 | - | 4.99 | 218,143 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,965 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,486 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,810 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,915 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,830 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,997 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,226 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,086 |
| World Capitals Quiz | 0 | - | 5.00 | 5,049,754 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,719 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,410 |
| Capitals of the Stans | 0 | - | 4.95 | 26,596 |
| UK Cities and Towns by Map | 0 | - | 4.48 | 46,417 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,682,779 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,288 |
| Cities in the United Kingdom by Proximity | 0 | - | 4.63 | 47,948 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,577,535 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,887 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,234 |
| Word Scramble - European Capitals | 0 | - | 4.70 | 93,939 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,661 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,768 |
| Random African Capital to Country | 0 | - | 4.97 | 100,011 |
| Random African Country to Capital | 0 | - | 4.94 | 70,540 |
| Melbourne Suburbs | 0 | - | 4.84 | 52,303 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,727 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,042 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 97,788 |
| British Places A-Z | 0 | - | 4.29 | 79,727 |
| Word Scramble - U.K. Cities | 0 | - | 4.57 | 64,882 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,425 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.84 | 72,396 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,679 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,905 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,490 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,795 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,820 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 143,055 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,986 |
| Which City in Europe? | 0 | - | 4.83 | 106,988 |
| Boroughs of London | 0 | - | 4.63 | 87,368 |
| London Geography | 0 | - | 4.47 | 59,568 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,843 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,163 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,662 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,858 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 79,874 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,073 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,633 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,411 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,883 |
| North American Sports Cities | 0 | - | 4.83 | 171,361 |
| Summer Olympic City Bids | 0 | - | 4.93 | 42,032 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,442 |
| 20 Northernmost English Cities | 0 | - | 4.49 | 23,814 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,315 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,022 |
| Name a Valid World City | 0 | - | 4.83 | 70,582 |
| Cities by Former Name | 0 | - | 4.84 | 91,246 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,207 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,558 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,037 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,442 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,036 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,290 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,148 |
| Countries by Capital City | 0 | - | 5.00 | 67,445 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,726 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,233 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,685 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,478 |
| Moved Capital Cities | 0 | - | 4.96 | 73,871 |
| World Capitals by Map | 0 | - | 5.00 | 284,747 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,959 |
| Random Capital to Country | 0 | - | 4.99 | 2,584,014 |
| Europe Capitals - One Minute Sprint | 0 | - | 4.40 | 200,559 |
| World Capitals Closest to Madrid | 0 | - | 4.50 | 42,385 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,098 |
| Random Country to Capital | 0 | - | 4.98 | 914,857 |
| Capitals Starting With H | 0 | - | 4.90 | 91,704 |
| Capitals Starting With K | 0 | - | 4.85 | 75,926 |
| Capitals Starting With L | 0 | - | 4.81 | 87,129 |
| Capitals Starting With M | 0 | - | 4.93 | 106,566 |
| Capitals Starting With P | 0 | - | 4.88 | 77,431 |
| Capitals Starting With R | 0 | - | 4.87 | 81,218 |
| Capitals Starting With S | 0 | - | 4.89 | 85,058 |
| Capitals Starting With T | 0 | - | 4.84 | 75,545 |
| Capitals Starting With W | 0 | - | 4.87 | 90,842 |
| Capitals Starting With A | 0 | - | 4.97 | 126,904 |
| Capitals Starting With B | 0 | - | 4.89 | 117,601 |
| Capitals Starting With D | 0 | - | 4.93 | 95,683 |
| Random State Capital to U.S. State | 0 | - | 4.83 | 88,603 |
| US States and State Capitals | 0 | - | 4.99 | 160,163 |
| Which City in Canada? | 0 | - | 4.82 | 56,846 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,311 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,639 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,453 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,332 |
| Ancient Greek Words | 0 | - | 4.93 | 111,088 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,771 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,588 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,946 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 343,519 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,653 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,523 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,880 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,755 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,010 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,525 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,514 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,424 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,258 |
| European Cities by Map #1 | 0 | - | 4.67 | 55,638 |
| North America Cities by Map | 0 | - | 4.41 | 47,700 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,836 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,067 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,530 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,873 |
| Random European City to Country | 0 | - | 4.69 | 116,946 |
| Random Asian City to Country | 0 | - | 4.56 | 44,430 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 130,088 |
| Cities in Squares on a Map - Europe | 0 | - | 4.74 | 53,442 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,534 |
| Random Cities Near Paris on a Map | 0 | - | 4.55 | 39,404 |
| Capital Cities Chain | 0 | - | 4.84 | 82,246 |
| Coldest World Capitals | 0 | - | 4.95 | 133,207 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,122 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,363 |
| Countries and Capitals of the World With a Map | 0 | - | 5.00 | 65,829 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,605 |
| Which City in Germany? | 0 | - | 4.50 | 135,792 |
| Which City in Italy? | 0 | - | 4.64 | 89,688 |
| Which City in France? | 0 | - | 4.64 | 72,845 |
| Which City in Spain? | 0 | - | 4.50 | 49,797 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,198 |
| Countries of Europe After World War II | 0 | - | 4.99 | 187,641 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,869 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,449 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,233 |
| Famous Ancient Romans | 0 | - | 4.69 | 85,301 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,592 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,443 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,342 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,014 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,405 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,205 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,372 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.98 | 100,352 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,896 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,141 |
| South American Cities on the Map | 0 | - | 4.56 | 35,307 |
| Southeast Asian Cities by Map | 0 | - | 4.63 | 26,636 |
