| Axis Occupied Countries of WWII | 0 | - | 4.99 | 222,939 |
| Countries in World War I | 0 | - | 4.88 | 222,480 |
| Countries in World War II | 0 | - | 4.52 | 880,679 |
| Important Cities in WWII | 0 | - | 4.42 | 90,540 |
| Battle to Country | 0 | - | 4.91 | 50,199 |
| Cities Bombed During WWII | 0 | - | 4.06 | 29,287 |
| Cities by Former Name | 0 | - | 4.84 | 89,115 |
| Countries by Percent WWII Deaths | 0 | - | 4.12 | 28,859 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.78 | 75,721 |
| WWII First Names | 0 | - | 4.45 | 40,885 |
| Former Capitals Quiz | 0 | - | 4.87 | 69,968 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 46,254 |
| Divided World City Name Puzzle #2 | 0 | - | 4.81 | 34,914 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 93,386 |
| World Leaders of the World Wars | 0 | - | 4.35 | 36,877 |
| World Capitals Quiz | 0 | - | 5.00 | 4,897,564 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 127,410 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 76,527 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 79,179 |
| Communist Countries in History | 0 | - | 4.63 | 483,137 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,521,790 |
| Most Guessed European Capitals | 0 | - | 4.89 | 100,107 |
| Name a World Capital A-Z | 0 | - | 5.00 | 171,279 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 185,581 |
| Ancient City to Country | 0 | - | 4.70 | 105,968 |
| City-States | 0 | - | 4.53 | 36,612 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 101,349 |
| Damaged and Destroyed Cities | 0 | - | 4.43 | 43,930 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 69,761 |
| City Where It Happened #2 | 0 | - | 4.44 | 52,438 |
| World Capitals by Proximity | 0 | - | 4.90 | 318,228 |
| Commonwealth of Nations Countries | 0 | - | 4.93 | 232,816 |
| Global Cities on a World Map | 0 | - | 4.94 | 128,574 |
| Cities Where Famous People Died | 0 | - | 4.43 | 32,652 |
| Africa Capitals Quiz | 0 | - | 4.99 | 707,071 |
| Asia Capitals Quiz | 0 | - | 4.97 | 663,786 |
| Northernmost Capital Cities | 0 | - | 4.98 | 104,790 |
| Most Remote Capital Cities | 0 | - | 4.91 | 50,263 |
| Capital Cities: Ports and Saints | 0 | - | 4.95 | 41,736 |
| Capitals with the Shortest Names | 0 | - | 4.96 | 103,131 |
| Same Letter Country and Capital | 0 | - | 4.99 | 141,396 |
| Countries by Capital City | 0 | - | 5.00 | 61,939 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 73,591 |
| Capitals of the Largest Countries by Area | 0 | - | 4.95 | 111,582 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 80,882 |
| Moved Capital Cities | 0 | - | 4.95 | 71,766 |
| Random Capital to Country | 0 | - | 4.99 | 2,532,249 |
| World Capitals with a Unique First Letter | 0 | - | 4.81 | 61,681 |
| Random Country to Capital | 0 | - | 4.98 | 883,050 |
| Independence from Whom | 0 | - | 4.99 | 204,241 |
| Who Controlled These Colonies? | 0 | - | 4.90 | 126,743 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 60,619 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 89,627 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 38,583 |
| Countries by Founding Story | 0 | - | 4.95 | 74,498 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 124,531 |
| Summer Olympic City Bids | 0 | - | 4.92 | 40,420 |
| Important Cities in European History | 0 | - | 4.56 | 114,883 |
| Cities by Founder and Date | 0 | - | 4.55 | 28,743 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.88 | 99,142 |
| Name a City - European Countries | 0 | - | 4.93 | 61,437 |
| City Where It Happened #1 | 0 | - | 4.26 | 105,429 |
| Cities By Wikipedia Word Clouds A-Z | 0 | - | 4.81 | 31,687 |
| Capitals in their Native Languages | 0 | - | 4.94 | 131,424 |
| Nearest Capital City #1 | 0 | - | 4.83 | 55,750 |
| World Capitals Deepest in a Country's Territory | 0 | - | 4.96 | 52,335 |
| World Capitals by Map | 0 | - | 5.00 | 272,894 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 55,612 |
| World Capitals By Letter - H | 0 | - | 4.86 | 77,293 |
| World Capitals By Letter - K | 0 | - | 4.83 | 71,828 |
| World Capitals By Letter - M | 0 | - | 4.93 | 99,620 |
| World Capitals By Letter - P | 0 | - | 4.86 | 73,220 |
| World Capitals By Letter - R | 0 | - | 4.85 | 77,603 |
| World Capitals By Letter - S | 0 | - | 4.90 | 80,657 |
| World Capitals By Letter - T | 0 | - | 4.83 | 71,794 |
| World Capitals By Letter - W | 0 | - | 4.88 | 87,496 |
| World Capitals By Letter - A | 0 | - | 4.97 | 120,945 |
| World Capitals By Letter - B | 0 | - | 4.85 | 105,943 |
| World Capitals By Letter - D | 0 | - | 4.92 | 85,789 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 154,305 |
| Countries of the World in 1900 | 0 | - | 4.88 | 79,067 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 187,357 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 143,495 |
| Countries by Former Name | 0 | - | 4.99 | 121,887 |
| Historical City to Country | 0 | - | 4.84 | 76,775 |
| Most Populous Countries by Year | 0 | - | 4.81 | 105,664 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 163,922 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 131,890 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.86 | 73,747 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 81,899 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 65,313 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 71,472 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 94,110 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 170,203 |
| Official Cities in the UK | 0 | - | 4.89 | 271,078 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.91 | 93,817 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 105,586 |
| Most Guessed Cities by Country #3 | 0 | - | 4.88 | 42,592 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 205,729 |
| Most-Visited Cities in Europe | 0 | - | 4.89 | 69,529 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 126,871 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 110,746 |
| Europe Capital to Country | 0 | - | 4.99 | 240,761 |
| Asia Capital to Country | 0 | - | 4.96 | 123,125 |
| Capital Cities Chain | 0 | - | 4.87 | 79,036 |
| EU Capitals with No Hints | 0 | - | 4.96 | 139,586 |
| European Capitals by Map | 0 | - | 4.99 | 128,388 |
| African Capitals by Map | 0 | - | 4.99 | 127,034 |
| South America Capitals Quiz | 0 | - | 5.00 | 465,011 |
| North America Capitals Quiz | 0 | - | 4.99 | 208,690 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 59,219 |
| Coldest World Capitals | 0 | - | 4.95 | 131,936 |
| Asian Capitals by Map | 0 | - | 4.98 | 57,750 |
| Top 10 Most Remote European Capitals | 0 | - | 4.85 | 91,258 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 114,938 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.87 | 88,199 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 84,703 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 80,947 |
| European Coastal Capitals | 0 | - | 4.95 | 86,750 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 56,475 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 50,957 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 256,874 |
| Most Guessed Capitals on JetPunk | 0 | - | 4.89 | 122,465 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.89 | 214,812 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 80,141 |
| European Capitals Furthest from the Sea | 0 | - | 4.90 | 71,681 |
| Capital Cities with Spanish Names | 0 | - | 4.89 | 73,896 |
| Asian Capitals - Map Quiz | 0 | - | 4.94 | 58,403 |
| Flags to Capitals #1 | 0 | - | 4.96 | 55,394 |
| Flags to Capitals #2 | 0 | - | 4.94 | 42,035 |
| Five Most Guessed Capital Cities by Continent | 0 | - | 4.85 | 91,683 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 220,702 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 87,092 |
| European Capitals Ending in N | 0 | - | 4.92 | 79,136 |
| The Only Country ... | 0 | - | 4.91 | 56,273 |
| Countries Settled by Vikings | 0 | - | 4.93 | 118,567 |
| Countries with the Most Christians | 0 | - | 4.92 | 136,707 |
| Catholic Countries Quiz | 0 | - | 4.81 | 209,663 |
| Countries with the Most Catholics | 0 | - | 4.90 | 104,212 |
| Orthodox Countries | 0 | - | 4.92 | 127,354 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 75,850 |
| Monarchies of Europe | 0 | - | 4.89 | 94,837 |
| Monarchies of Asia | 0 | - | 4.97 | 69,221 |
| Warsaw Pact Countries | 0 | - | 4.82 | 83,136 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 83,483 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.94 | 63,013 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 95,791 |
| Countries of the World in 1444 | 0 | - | 4.98 | 57,480 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.82 | 54,792 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 66,404 |
| Countries of Europe before World War II with a Map | 0 | - | 4.95 | 48,997 |
| Asian Country Superlatives | 0 | - | 4.83 | 79,072 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 107,569 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 145,234 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 72,300 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.94 | 59,846 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 67,321 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 223,316 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 159,404 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.89 | 104,552 |
| Category Elimination - African Geography #1 | 0 | - | 4.91 | 88,253 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.95 | 92,324 |
| Biggest City by Body of Water | 0 | - | 4.50 | 39,822 |
| Southernmost Major Cities | 0 | - | 4.42 | 46,470 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.47 | 71,661 |
| Home Cities in History Quiz #1 | 0 | - | 4.11 | 16,377 |
| Cities with the Most Foreign Embassies | 0 | - | 4.68 | 46,630 |
| Most Appealing Cities for Working Abroad | 0 | - | 4.43 | 35,842 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 65,803 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.54 | 136,039 |
| European Cities with the Biggest Economies | 0 | - | 4.59 | 37,482 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 136,604 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 87,417 |
| Every U.S. Metro Area on a Map | 0 | - | 4.96 | 77,509 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.91 | 23,627 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 41,496 |
| Capitals of Canadian Provinces | 0 | - | 4.87 | 85,682 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,321 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 49,587 |
| Random World Capitals on a Map | 0 | - | 4.92 | 128,741 |
| Name a Valid European Capital | 0 | - | 4.95 | 146,422 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 86,520 |
| Capital Cities with the Least Precipitation | 0 | - | 4.88 | 28,638 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 111,559 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 193,141 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 117,565 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 110,681 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 88,814 |
| Political Movements by Country | 0 | - | 4.44 | 71,337 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 189,422 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 123,656 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 121,090 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 102,637 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 112,211 |
| Capitals of the Stans | 0 | - | 4.95 | 25,267 |
| The Vietnam War | 0 | - | 4.43 | 34,660 |
| English Monarchs Quiz | 0 | - | 4.92 | 483,640 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 218,036 |
| European Cities A-Z | 0 | - | 4.21 | 72,571 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 52,933 |
