| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,341 |
| Famous Dictators #1 | 0 | - | 4.69 | 199,405 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,341 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,163 |
| Historical Rulers #2 | 0 | - | 4.26 | 47,368 |
| Historical Rulers #1 | 0 | - | 4.35 | 118,749 |
| World Leaders Quiz #1 | 0 | - | 4.11 | 109,901 |
| Words for Leaders | 0 | - | 4.77 | 256,667 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,355 |
| World Leaders Quiz #2 | 0 | - | 4.00 | 35,795 |
| UN Secretaries-General | 0 | - | 4.40 | 7,782 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,589 |
| Prime Ministers of the UK | 0 | - | 4.95 | 437,550 |
| NATO Countries | 0 | - | 4.98 | 279,034 |
| EU Countries Quiz | 0 | - | 4.99 | 272,628 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,752 |
| Popular Royal Names | 0 | - | 4.27 | 124,819 |
| Political Figures by Last Name #1 | 0 | - | 4.55 | 67,809 |
| World Leaders of the Cold War | 0 | - | 4.27 | 25,237 |
| Military History Vocabulary | 0 | - | 4.91 | 66,992 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,109 |
| Monarchies of Europe | 0 | - | 4.90 | 97,899 |
| Monarchies of Asia | 0 | - | 4.97 | 70,942 |
| "Second Best" History Edition | 0 | - | 4.94 | 62,714 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,789 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.20 | 48,580 |
| U.S. Cabinet Departments | 0 | - | 4.85 | 72,784 |
| World Leaders by Picture | 0 | - | 4.36 | 264,734 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,406 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,841 |
| Name the English Monarchs | 0 | - | 4.91 | 501,213 |
| All OPEC Countries Ever | 0 | - | 4.77 | 90,492 |
| Dictators by Picture | 0 | - | 4.18 | 49,068 |
| WWII Geography | 0 | - | 4.81 | 120,078 |
| WWII Figures by Picture | 0 | - | 4.89 | 65,027 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,479 |
| Empires by Maps | 0 | - | 4.98 | 119,869 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,573 |
| Political Quotes | 0 | - | 4.17 | 19,863 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,316 |
| Metals of Antiquity | 0 | - | 4.94 | 93,269 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,556 |
| History: What Came First? #1 | 0 | - | 4.87 | 105,026 |
| Spouses of World Leaders | 0 | - | 4.18 | 12,309 |
| First Names of Recent World Leaders | 0 | - | 4.25 | 24,951 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.48 | 15,829 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,161 |
| Kings of France Quiz | 0 | - | 4.20 | 32,673 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,903 |
| Influential Women in History | 0 | - | 4.42 | 35,475 |
| Cradles of Civilization | 0 | - | 4.46 | 39,532 |
| Materials From History #1 | 0 | - | 4.56 | 51,459 |
| Historical Countries by Ruler | 0 | - | 4.48 | 48,513 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,049 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,849 |
| Countries of the Popes | 0 | - | 4.79 | 127,823 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 706,489 |
| First Names of Painters | 0 | - | 4.43 | 59,792 |
| Biggest Nations and Empires Ever | 0 | - | 4.52 | 145,704 |
| Famous Explorers | 0 | - | 4.58 | 36,113 |
| Famous Empires by Description | 0 | - | 4.73 | 118,304 |
| Answers by Time Period | 0 | - | 4.64 | 55,500 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,855 |
| History of The Netherlands | 0 | - | 4.46 | 17,401 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,643 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,901 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.94 | 40,933 |
| All Modern-Day Countries Ever Controlled by Arab People with a Map | 0 | - | 4.98 | 55,201 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 287,242 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 271,615 |
| Countries with NO Military | 0 | - | 4.97 | 61,883 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 147,859 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,646 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,353 |
| Top Five Countries by Religion | 0 | - | 4.93 | 170,589 |
| 7 Deadly Sins | 0 | - | 4.88 | 398,865 |
| Books of the Protestant Bible | 0 | - | 4.89 | 209,268 |
| Majority Muslim Countries | 0 | - | 4.98 | 372,909 |
| Former Flags | 0 | - | 4.97 | 107,418 |
| Years in History by Picture | 0 | - | 4.44 | 35,418 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,491 |
| Materials From History #2 | 0 | - | 4.59 | 31,448 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,859 |
| Historic Orient Express Routes Map | 0 | - | 4.99 | 53,378 |
| Political Figures by Last Name #2 | 0 | - | 3.88 | 16,686 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,755 |
| WWII Decoder | 0 | - | 4.41 | 53,461 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 55,258 |
| Cold War Decoder | 0 | - | 4.83 | 52,234 |
| 20th Century Dates Quiz | 0 | - | 4.56 | 39,381 |
| Events in History #2 | 0 | - | 4.49 | 71,627 |
| Events in History #4 | 0 | - | 4.44 | 44,249 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,980 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.21 | 48,948 |
| Assassinations in History | 0 | - | 4.21 | 66,147 |
| Famous Seconds | 0 | - | 4.22 | 46,538 |
| Ages and Eras | 0 | - | 4.39 | 67,641 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,465 |
| Titled People Quiz #1 | 0 | - | 4.11 | 45,756 |
| Titled People Quiz #3 | 0 | - | 4.34 | 43,139 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 75,949 |
| Female Historical Figures | 0 | - | 4.28 | 33,218 |
| Historical Blunders | 0 | - | 4.34 | 91,881 |
| Territorial Accessions | 0 | - | 4.36 | 34,753 |
| People Known as "The Great" | 0 | - | 4.46 | 24,627 |
| This Day in History - July | 0 | - | 4.49 | 36,433 |
| This Day in History - August | 0 | - | 4.42 | 43,331 |
| This Day in History - September | 0 | - | 4.55 | 57,393 |
| This Day in History - October | 0 | - | 4.49 | 37,604 |
| This Day in History - January | 0 | - | 4.50 | 46,669 |
| This Day in History - March | 0 | - | 4.45 | 43,628 |
| Ancient Civilizations | 0 | - | 4.64 | 37,900 |
| The Places They Went #1 | 0 | - | 4.74 | 33,501 |
| Famous Inventors | 0 | - | 4.43 | 43,518 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,787 |
| All Modern-Day Countries Ever Controlled by the Seljuks | 0 | - | 4.92 | 28,448 |
| European History for Dummies | 0 | - | 4.83 | 89,722 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,729 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,552 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.09 | 1,012,982 |
| U.S. States by Governor | 0 | - | 4.43 | 18,036 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,662 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,642 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 55,226 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,057 |
| Coldest World Capitals | 0 | - | 4.95 | 133,425 |
| World Currency Quiz | 0 | - | 4.91 | 301,657 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 334,502 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,100 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,298 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,607 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 130,626 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,685 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,798 |
| Buddhist Countries | 0 | - | 4.96 | 143,643 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,095,421 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 319,528 |
| The 2nd Millennium BC | 0 | - | 4.64 | 20,803 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,240 |
| History Analogies #1 | 0 | - | 4.53 | 89,906 |
| History Analogies #2 | 0 | - | 4.49 | 77,150 |
| Current Events by Year, 1990–2009 | 0 | - | 4.77 | 152,465 |
| Current Events by Year, 1970–1989 | 0 | - | 4.56 | 65,111 |
| Current Events by Year, 1930–1949 | 0 | - | 4.48 | 52,042 |
| Groups of Things - History #1 | 0 | - | 4.41 | 93,970 |
| History Analogies #3 | 0 | - | 4.61 | 80,591 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,377 |
| Which Came First? | 0 | - | 4.37 | 74,689 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,110 |
| Random History by Country | 0 | - | 4.53 | 34,803 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,798 |
| Animals in World History | 0 | - | 4.74 | 44,418 |
| People - Real or Fictional? | 0 | - | 4.56 | 58,732 |
| Places - Real or Fictional? | 0 | - | 4.59 | 49,523 |
| History True or False #3 | 0 | - | 4.43 | 56,730 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,408 |
| The Dictator Files: Fidel Castro | 0 | - | 4.19 | 12,304 |
| A to Z: Legendary Creatures | 0 | - | 4.26 | 52,952 |
| WWII First Names | 0 | - | 4.44 | 41,737 |
| WWII for Dummies | 0 | - | 4.79 | 104,667 |
| Cold War Trivia #1 | 0 | - | 4.42 | 57,195 |
| Events in History #3 | 0 | - | 4.40 | 71,627 |
| Events in History #1 | 0 | - | 4.34 | 157,601 |
| Events in Ancient History | 0 | - | 4.50 | 35,915 |
| People Who Died Young #1 | 0 | - | 4.24 | 63,635 |
| Deaths by Date and Cause #1 | 0 | - | 4.38 | 95,129 |
| Deaths by Date and Cause #2 | 0 | - | 4.15 | 67,682 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,953 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,293 |
| This Day in History - April | 0 | - | 4.40 | 44,443 |
| This Day in History - May | 0 | - | 4.33 | 48,339 |
| This Day in History - June | 0 | - | 4.32 | 33,487 |
| This Day in History - November | 0 | - | 4.24 | 33,587 |
| This Day in History - December | 0 | - | 4.32 | 40,517 |
| This Day in History - February | 0 | - | 4.38 | 39,759 |
| The 19th Century | 0 | - | 4.53 | 68,069 |
| The 18th Century | 0 | - | 4.52 | 53,251 |
| The 16th Century | 0 | - | 4.77 | 58,847 |
| The 9th and 10th Century | 0 | - | 4.54 | 37,634 |
| The 21st Century | 0 | - | 4.48 | 105,790 |
| Battle to Country | 0 | - | 4.91 | 53,091 |
| The Life of King David | 0 | - | 4.37 | 14,112 |
| History Multiple Choice #1 | 0 | - | 4.44 | 81,824 |
| Years in History #2 - Multiple Choice | 0 | - | 4.43 | 41,594 |
| History Multiple Choice #2 | 0 | - | 4.43 | 49,983 |
| History Multiple Choice #3 | 0 | - | 4.45 | 48,692 |
| History Multiple Choice #5 | 0 | - | 4.49 | 32,415 |
| Three Real and One Fake - World History | 0 | - | 4.44 | 38,328 |
| English Royal Consorts | 0 | - | 4.37 | 37,305 |
| British History A-Z #1 | 0 | - | 4.45 | 46,380 |
| Dark Ages History | 0 | - | 4.42 | 32,735 |
| 30 Historical People You Probably Don't Know | 0 | - | 4.36 | 60,951 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 336,963 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,319 |
| World Capitals in the Answer | 0 | - | 4.94 | 76,797 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,514 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,145 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 194,821 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,023 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,332 |
