| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,399 |
| Countries in World War I | 0 | - | 4.88 | 228,493 |
| Countries in World War II | 0 | - | 4.55 | 914,900 |
| Battle to Country | 0 | - | 4.91 | 53,541 |
| Cities by Former Name | 0 | - | 4.83 | 91,737 |
| Countries by Percent WWII Deaths | 0 | - | 4.07 | 30,077 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 78,066 |
| WWII First Names | 0 | - | 4.44 | 41,849 |
| Former Capitals | 0 | - | 4.88 | 71,524 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 48,978 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,189 |
| World Capitals Quiz | 0 | - | 5.00 | 5,084,588 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,255 |
| World Leaders of the World Wars | 0 | - | 4.36 | 37,901 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 133,425 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 80,779 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,301 |
| Communist Countries in History | 0 | - | 4.63 | 496,566 |
| Ancient City to Country | 0 | - | 4.70 | 108,148 |
| City-States | 0 | - | 4.53 | 37,310 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,720 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,154 |
| City Where It Happened #3 | 0 | - | 4.53 | 40,474 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,591,068 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,595 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,500 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,118 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,587 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,314 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,997 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,560 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,562 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,702 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,517 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,350 |
| Countries by Capital City | 0 | - | 5.00 | 68,664 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,391 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,829 |
| World Capitals by Proximity | 0 | - | 4.91 | 332,191 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,427 |
| Moved Capital Cities | 0 | - | 4.96 | 74,362 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,645 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,702 |
| Independence from Whom | 0 | - | 4.99 | 212,156 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,771 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,610 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,508 |
| Countries by Founding Story | 0 | - | 4.95 | 77,394 |
| Cities Where Famous People Died | 0 | - | 4.47 | 33,188 |
| Africa Capitals Quiz | 0 | - | 4.99 | 739,846 |
| Asia Capitals Quiz | 0 | - | 4.98 | 694,841 |
| Random Capital to Country | 0 | - | 4.99 | 2,594,923 |
| Random Country to Capital | 0 | - | 4.98 | 922,930 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,657 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,083 |
| North American Sports Cities | 0 | - | 4.83 | 172,662 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,403 |
| Cities in European History #1 | 0 | - | 4.63 | 134,223 |
| Cities by Founder and Date | 0 | - | 4.56 | 29,129 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,573 |
| Name a City - European Countries | 0 | - | 4.90 | 65,631 |
| City Where It Happened #1 | 0 | - | 4.23 | 106,394 |
| Name a Valid World City | 0 | - | 4.84 | 71,482 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,492 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,764 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,414 |
| World Capitals by Map | 0 | - | 5.00 | 287,507 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,486 |
| Capitals Starting With H | 0 | - | 4.91 | 92,732 |
| Capitals Starting With K | 0 | - | 4.88 | 83,780 |
| Capitals Starting With L | 0 | - | 4.81 | 88,256 |
| Capitals Starting With M | 0 | - | 4.93 | 108,084 |
| Capitals Starting With P | 0 | - | 4.88 | 78,356 |
| Capitals Starting With R | 0 | - | 4.87 | 81,987 |
| Capitals Starting With S | 0 | - | 4.90 | 85,961 |
| Capitals Starting With T | 0 | - | 4.84 | 76,317 |
| Capitals Starting With W | 0 | - | 4.87 | 91,403 |
| Capitals Starting With A | 0 | - | 4.97 | 128,307 |
| Capitals Starting With B | 0 | - | 4.89 | 118,721 |
| Capitals Starting With D | 0 | - | 4.93 | 96,638 |
| Recently Independent Countries | 0 | - | 4.98 | 159,495 |
| Countries of the World in 1900 | 0 | - | 4.89 | 85,280 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 195,790 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 151,352 |
| Countries by Former Name | 0 | - | 4.99 | 125,369 |
| Historical City to Country | 0 | - | 4.84 | 78,644 |
| Single Vowel Capitals | 0 | - | 4.81 | 14,553 |
| WWII for Dummies | 0 | - | 4.78 | 105,197 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,887 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,523 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,310 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,931 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,349 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,647 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,421 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,630 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 110,973 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,208 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,531 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,408 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,112 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,957 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,430 |
| Europe Capital to Country | 0 | - | 4.99 | 250,906 |
| Asia Capital to Country | 0 | - | 4.96 | 126,879 |
| Capital Cities Chain | 0 | - | 4.84 | 82,966 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,216 |
| European Capitals by Map | 0 | - | 4.99 | 139,995 |
| African Capitals by Map | 0 | - | 4.99 | 134,181 |
| South America Capitals Quiz | 0 | - | 5.00 | 482,640 |
| Coldest World Capitals | 0 | - | 4.95 | 133,663 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,650 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,306 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,645 |
| European Coastal Capitals | 0 | - | 4.95 | 90,828 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,679 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 270,898 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,573 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,929 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,781 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,123 |
| Countries and Capitals of the World With a Map | 0 | - | 5.00 | 67,896 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,772 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,618 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,571 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,534 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,660 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,059 |
| Countries of the World in 1444 | 0 | - | 4.98 | 60,444 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,593 |
| Countries of Europe before World War II with a Map | 0 | - | 4.95 | 53,639 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,945 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,649 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,360 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,615 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,103 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,567 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,926 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,264 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,497 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 72,953 |
| Home Cities in History #1 | 0 | - | 4.04 | 16,580 |
| Official Cities in the UK | 0 | - | 4.89 | 284,544 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,176 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,399 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,497 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 149,353 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,228 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,053 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,687 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,266 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,615 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,611 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,725 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,216 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,533 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,359 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,038 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,734 |
| Most Guessed Capitals on JetPunk | 0 | - | 4.87 | 126,690 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,396 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,304 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,556 |
| Flags to Capitals #1 | 0 | - | 4.96 | 58,606 |
| Flags to Capitals #2 | 0 | - | 4.95 | 44,521 |
| Five Most Guessed Capital Cities by Continent | 0 | - | 4.86 | 94,249 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 226,952 |
| Random World Capitals on a Map | 0 | - | 4.93 | 134,895 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,757 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 89,520 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,234 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,420 |
| The Only Country ... | 0 | - | 4.91 | 81,424 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,271 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,805 |
| Orthodox Countries | 0 | - | 4.92 | 132,265 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,819 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,823 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 135,554 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,390 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,066 |
| Monarchies of Europe | 0 | - | 4.90 | 98,358 |
| Monarchies of Asia | 0 | - | 4.97 | 71,229 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,932 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,030 |
| Political Movements by Country | 0 | - | 4.46 | 72,624 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,028 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,368 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,272 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,515 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,098 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,998 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,766 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 83,488 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,117 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,334 |
| Capitals of the Stans | 0 | - | 4.95 | 26,923 |
| The Vietnam War | 0 | - | 4.44 | 35,578 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,293 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,326 |
