| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,436 |
| Countries in World War I | 0 | - | 4.88 | 228,509 |
| Countries in World War II | 0 | - | 4.55 | 915,023 |
| Battle to Country | 0 | - | 4.91 | 53,555 |
| Cities Bombed During WWII | 0 | - | 4.09 | 30,212 |
| Cities by Former Name | 0 | - | 4.83 | 91,746 |
| Countries by Percent WWII Deaths | 0 | - | 4.07 | 30,080 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 78,075 |
| WWII First Names | 0 | - | 4.44 | 41,854 |
| Former Capitals | 0 | - | 4.88 | 71,533 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 48,986 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,194 |
| World Capitals Quiz | 0 | - | 5.00 | 5,085,421 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,263 |
| World Leaders of the World Wars | 0 | - | 4.36 | 37,906 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 133,446 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 80,790 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,307 |
| Communist Countries in History | 0 | - | 4.63 | 496,641 |
| Ancient City to Country | 0 | - | 4.70 | 108,156 |
| City-States | 0 | - | 4.53 | 37,312 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,722 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,157 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,591,452 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,611 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,510 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,236 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,616 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,335 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,004 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,578 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,580 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,714 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,535 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,386 |
| Countries by Capital City | 0 | - | 5.00 | 68,680 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,400 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,843 |
| World Capitals by Proximity | 0 | - | 4.91 | 332,249 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,438 |
| Moved Capital Cities | 0 | - | 4.96 | 74,376 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,655 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,728 |
| Independence from Whom | 0 | - | 4.99 | 212,185 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,795 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,615 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,521 |
| Countries by Founding Story | 0 | - | 4.95 | 77,405 |
| Cities Where Famous People Died | 0 | - | 4.47 | 33,189 |
| Africa Capitals Quiz | 0 | - | 4.99 | 740,000 |
| Asia Capitals Quiz | 0 | - | 4.98 | 694,974 |
| Random Capital to Country | 0 | - | 4.99 | 2,595,125 |
| Random Country to Capital | 0 | - | 4.98 | 923,149 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,664 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,093 |
| North American Sports Cities | 0 | - | 4.83 | 172,679 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,415 |
| Cities in European History #1 | 0 | - | 4.63 | 134,237 |
| Cities by Founder and Date | 0 | - | 4.56 | 29,129 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,593 |
| Name a City - European Countries | 0 | - | 4.90 | 65,652 |
| City Where It Happened #1 | 0 | - | 4.23 | 106,396 |
| Name a Valid World City | 0 | - | 4.84 | 71,503 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,501 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,772 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,425 |
| World Capitals by Map | 0 | - | 5.00 | 287,566 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,495 |
| Capitals Starting With H | 0 | - | 4.91 | 92,747 |
| Capitals Starting With K | 0 | - | 4.88 | 83,800 |
| Capitals Starting With L | 0 | - | 4.81 | 88,270 |
| Capitals Starting With M | 0 | - | 4.93 | 108,105 |
| Capitals Starting With P | 0 | - | 4.88 | 78,375 |
| Capitals Starting With R | 0 | - | 4.87 | 81,995 |
| Capitals Starting With S | 0 | - | 4.90 | 85,978 |
| Capitals Starting With T | 0 | - | 4.84 | 76,329 |
| Capitals Starting With W | 0 | - | 4.87 | 91,411 |
| Capitals Starting With A | 0 | - | 4.97 | 128,320 |
| Capitals Starting With B | 0 | - | 4.89 | 118,739 |
| Capitals Starting With D | 0 | - | 4.93 | 96,651 |
| Recently Independent Countries | 0 | - | 4.98 | 159,509 |
| Countries of the World in 1900 | 0 | - | 4.89 | 85,306 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 195,841 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 151,385 |
| Countries by Former Name | 0 | - | 4.99 | 125,382 |
| Historical City to Country | 0 | - | 4.84 | 78,656 |
| Single Vowel Capitals | 0 | - | 4.81 | 14,559 |
| WWII for Dummies | 0 | - | 4.78 | 105,206 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,905 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,534 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,317 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,940 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,353 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,654 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,428 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,633 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,002 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,254 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,558 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,426 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,118 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,969 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,442 |
| Europe Capital to Country | 0 | - | 4.99 | 250,952 |
| Asia Capital to Country | 0 | - | 4.96 | 126,891 |
| Capital Cities Chain | 0 | - | 4.84 | 82,983 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,245 |
| European Capitals by Map | 0 | - | 4.99 | 140,050 |
| African Capitals by Map | 0 | - | 4.99 | 134,205 |
| South America Capitals Quiz | 0 | - | 5.00 | 482,729 |
| Coldest World Capitals | 0 | - | 4.95 | 133,671 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,671 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,322 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,664 |
| European Coastal Capitals | 0 | - | 4.95 | 90,853 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,685 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 270,942 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,645 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,935 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,787 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,137 |
| Countries and Capitals of the World With a Map | 0 | - | 5.00 | 67,933 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,786 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,639 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,573 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,558 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,688 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,085 |
| Countries of the World in 1444 | 0 | - | 4.98 | 60,451 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,597 |
| Countries of Europe before World War II with a Map | 0 | - | 4.95 | 53,660 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,991 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,697 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,372 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,625 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,116 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,588 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,936 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,266 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,507 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 72,953 |
| Home Cities in History #1 | 0 | - | 4.04 | 16,582 |
| Official Cities in the UK | 0 | - | 4.89 | 284,624 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,178 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,426 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,500 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 149,465 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,253 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,070 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,704 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,282 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,621 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,649 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,744 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,226 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,550 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,369 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,052 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,735 |
| Most Guessed Capitals on JetPunk | 0 | - | 4.87 | 126,706 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,398 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,316 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,565 |
| Flags to Capitals #1 | 0 | - | 4.96 | 58,616 |
| Flags to Capitals #2 | 0 | - | 4.95 | 44,529 |
| Five Most Guessed Capital Cities by Continent | 0 | - | 4.86 | 94,265 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 226,985 |
| Random World Capitals on a Map | 0 | - | 4.93 | 134,918 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,815 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 89,531 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,238 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,432 |
| The Only Country ... | 0 | - | 4.91 | 81,447 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,292 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,830 |
| Orthodox Countries | 0 | - | 4.92 | 132,293 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,848 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,831 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 135,619 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,404 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,078 |
| Monarchies of Europe | 0 | - | 4.90 | 98,376 |
| Monarchies of Asia | 0 | - | 4.97 | 71,242 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,942 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,040 |
| Political Movements by Country | 0 | - | 4.46 | 72,629 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,038 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,378 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,283 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,522 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,119 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,033 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,783 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 83,579 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,137 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,351 |
| Capitals of the Stans | 0 | - | 4.95 | 26,931 |
| The Vietnam War | 0 | - | 4.44 | 35,584 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,323 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,344 |
