| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,093 |
| Famous Dictators #1 | 0 | - | 4.69 | 198,641 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,199 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,032 |
| Historical Rulers #2 | 0 | - | 4.26 | 47,174 |
| Historical Rulers #1 | 0 | - | 4.35 | 118,431 |
| World Leaders Quiz #1 | 0 | - | 4.11 | 109,603 |
| Words for Leaders | 0 | - | 4.77 | 254,925 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,047 |
| Political Figures by Last Name #1 | 0 | - | 4.56 | 67,356 |
| World Leaders by Picture | 0 | - | 4.36 | 263,202 |
| Canadian Prime Ministers | 0 | - | 4.63 | 56,980 |
| World Leaders Quiz #2 | 0 | - | 4.00 | 35,631 |
| UN Secretaries-General | 0 | - | 4.40 | 7,756 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,533 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,187 |
| NATO Countries | 0 | - | 4.98 | 275,227 |
| EU Countries Quiz | 0 | - | 4.99 | 269,526 |
| Dictators by Picture | 0 | - | 4.17 | 48,839 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,250 |
| World Leaders of the Cold War | 0 | - | 4.27 | 25,102 |
| Military History Vocabulary | 0 | - | 4.91 | 66,599 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,195 |
| "Second Best" History Edition | 0 | - | 4.93 | 61,637 |
| Spouses of World Leaders | 0 | - | 4.18 | 12,282 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,638 |
| First Names of Recent World Leaders | 0 | - | 4.25 | 24,830 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.18 | 47,025 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.48 | 15,742 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,487 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,645 |
| Name the English Monarchs | 0 | - | 4.92 | 497,473 |
| OPEC Countries | 0 | - | 4.74 | 84,787 |
| WWII Geography | 0 | - | 4.81 | 119,276 |
| WWII Figures by Picture | 0 | - | 4.85 | 50,430 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,347 |
| Empires by Maps | 0 | - | 4.98 | 118,215 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,156 |
| Political Quotes | 0 | - | 4.17 | 19,799 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,042 |
| Metals of Antiquity | 0 | - | 4.94 | 92,822 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,099 |
| History: What Came First? #1 | 0 | - | 4.87 | 104,082 |
| History - Did They Have It? | 0 | - | 4.84 | 61,041 |
| Political Figures by Last Name #2 | 0 | - | 3.88 | 16,577 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,616 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,615 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,720 |
| Influential Women in History | 0 | - | 4.42 | 34,901 |
| Cradles of Civilization | 0 | - | 4.46 | 38,964 |
| Popular Royal Names | 0 | - | 4.27 | 124,436 |
| Materials From History #1 | 0 | - | 4.56 | 50,522 |
| Historical Countries by Ruler | 0 | - | 4.48 | 47,991 |
| Paramount Leaders of China | 0 | - | 4.36 | 10,989 |
| The Dictator Files: Fidel Castro | 0 | - | 4.19 | 12,246 |
| Name the Popes Quiz | 0 | - | 4.47 | 136,974 |
| Countries of the Popes | 0 | - | 4.79 | 127,093 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 704,032 |
| First Names of Painters | 0 | - | 4.43 | 59,579 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,075 |
| Famous Explorers | 0 | - | 4.58 | 35,915 |
| Famous Empires by Description | 0 | - | 4.70 | 117,471 |
| Answers by Time Period | 0 | - | 4.63 | 55,231 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,402 |
| History of The Netherlands | 0 | - | 4.46 | 17,299 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,563 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,489 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,915 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.95 | 40,653 |
| All Modern-Day Countries Ever Controlled by Arab People with a Map | 0 | - | 4.98 | 54,822 |
| All Modern-Day Countries Ever Controlled by the British | 0 | - | 4.81 | 49,317 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,717 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,578 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 267,785 |
| Countries with NO Military | 0 | - | 4.97 | 61,084 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 146,610 |
| Countries by Number of Books Published | 0 | - | 4.95 | 71,847 |
| Top Five Countries by Religion | 0 | - | 4.93 | 168,824 |
| 7 Deadly Sins | 0 | - | 4.88 | 394,372 |
| Books of the Protestant Bible | 0 | - | 4.89 | 206,904 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,086 |
| Former Flags | 0 | - | 4.97 | 106,544 |
| Years in History by Picture | 0 | - | 4.44 | 35,060 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,151 |
| Materials From History #2 | 0 | - | 4.59 | 30,895 |
| Historic Orient Express Routes Map | 0 | - | 5.00 | 52,904 |
| WWII Decoder | 0 | - | 4.41 | 53,006 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 54,703 |
| Cold War Decoder | 0 | - | 4.83 | 51,883 |
| 20th Century Dates Quiz | 0 | - | 4.56 | 39,301 |
| Events in History #2 | 0 | - | 4.49 | 71,386 |
| Events in History #4 | 0 | - | 4.44 | 44,073 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,282 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.21 | 48,786 |
| Assassinations in History | 0 | - | 4.20 | 65,922 |
| Famous Seconds | 0 | - | 4.22 | 46,367 |
| Ages and Eras Quiz | 0 | - | 4.38 | 67,419 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,377 |
| Titled People Quiz #1 | 0 | - | 4.10 | 45,585 |
| Titled People Quiz #3 | 0 | - | 4.34 | 43,005 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 75,804 |
| Female Historical Figures | 0 | - | 4.31 | 33,074 |
| Historical Blunders | 0 | - | 4.33 | 91,637 |
| Territorial Accessions | 0 | - | 4.38 | 34,614 |
| People Known as "The Great" | 0 | - | 4.46 | 24,492 |
| This Day in History - July | 0 | - | 4.49 | 36,357 |
| This Day in History - August | 0 | - | 4.41 | 43,234 |
| This Day in History - September | 0 | - | 4.55 | 57,240 |
| This Day in History - October | 0 | - | 4.49 | 37,545 |
| This Day in History - January | 0 | - | 4.53 | 46,557 |
| This Day in History - March | 0 | - | 4.45 | 43,529 |
| Ancient Civilizations | 0 | - | 4.63 | 37,727 |
| The Places They Went #1 | 0 | - | 4.74 | 33,433 |
| Famous Inventors | 0 | - | 4.43 | 43,442 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,426 |
| All Modern-Day Countries Ever Controlled by the Seljuks | 0 | - | 4.92 | 28,254 |
| European History for Dummies | 0 | - | 4.82 | 89,240 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,260 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.09 | 1,010,055 |
| U.S. States by Governor | 0 | - | 4.43 | 17,975 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,562 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,531 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 54,897 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,166 |
| Coldest World Capitals | 0 | - | 4.95 | 132,991 |
| World Currency Quiz | 0 | - | 4.92 | 297,919 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,546 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 121,890 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,653 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,037 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,529 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,290 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,820 |
| Buddhist Countries | 0 | - | 4.96 | 142,842 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,089,955 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,640 |
| The 2nd Millennium BC | 0 | - | 4.64 | 20,679 |
| Body Parts in History and Culture | 0 | - | 4.42 | 34,995 |
| History Analogies #1 | 0 | - | 4.53 | 89,749 |
| History Analogies #2 | 0 | - | 4.49 | 76,971 |
| Current Events by Year, 1990–2009 | 0 | - | 4.77 | 152,073 |
| Current Events by Year, 1970–1989 | 0 | - | 4.56 | 64,931 |
| Current Events by Year, 1930–1949 | 0 | - | 4.48 | 51,909 |
| History Analogies #3 | 0 | - | 4.61 | 80,407 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,102 |
| Which Came First? | 0 | - | 4.37 | 74,367 |
| Ancient Greece A-Z | 0 | - | 4.60 | 22,972 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,486 |
| Random History by Country | 0 | - | 4.53 | 34,636 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,505 |
| Animals in World History | 0 | - | 4.74 | 44,194 |
| People - Real or Fictional? | 0 | - | 4.56 | 58,425 |
| Places - Real or Fictional? | 0 | - | 4.59 | 49,332 |
| History True or False #3 | 0 | - | 4.43 | 55,881 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,295 |
| A to Z: Legendary Creatures | 0 | - | 4.26 | 52,708 |
| WWII First Names | 0 | - | 4.45 | 41,539 |
| WWII for Dummies | 0 | - | 4.80 | 103,722 |
| Cold War Trivia #1 | 0 | - | 4.41 | 56,908 |
| Events in History #3 | 0 | - | 4.40 | 71,415 |
| Events in History #1 | 0 | - | 4.34 | 157,205 |
| Events in Ancient History | 0 | - | 4.50 | 35,675 |
| People Who Died Young #1 | 0 | - | 4.24 | 63,516 |
| Deaths by Date and Cause #1 | 0 | - | 4.37 | 94,848 |
| Deaths by Date and Cause #2 | 0 | - | 4.15 | 67,444 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,495 |
| Countries That Were Invaded | 0 | - | 4.54 | 96,871 |
| This Day in History - April | 0 | - | 4.39 | 44,381 |
| This Day in History - May | 0 | - | 4.32 | 48,237 |
| This Day in History - June | 0 | - | 4.35 | 33,425 |
| This Day in History - November | 0 | - | 4.24 | 33,527 |
| This Day in History - December | 0 | - | 4.31 | 40,442 |
| This Day in History - February | 0 | - | 4.38 | 39,691 |
| The 19th Century | 0 | - | 4.53 | 67,857 |
| The 18th Century | 0 | - | 4.52 | 53,102 |
| The 16th Century | 0 | - | 4.77 | 58,719 |
| The 9th and 10th Century | 0 | - | 4.54 | 37,523 |
| The 21st Century | 0 | - | 4.48 | 105,231 |
| Battle to Country | 0 | - | 4.91 | 52,451 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,645 |
| The Life of King David | 0 | - | 4.37 | 14,055 |
| History Multiple Choice #1 | 0 | - | 4.46 | 81,481 |
| Years in History #2 - Multiple Choice | 0 | - | 4.43 | 41,384 |
| History Multiple Choice #2 | 0 | - | 4.43 | 49,781 |
| History Multiple Choice #3 | 0 | - | 4.45 | 48,515 |
| History Multiple Choice #5 | 0 | - | 4.49 | 32,250 |
| Three Real and One Fake - World History | 0 | - | 4.44 | 38,171 |
| English Royal Consorts | 0 | - | 4.37 | 37,142 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,588 |
| British History A-Z #1 | 0 | - | 4.45 | 45,764 |
| Kings of France Quiz | 0 | - | 4.20 | 32,539 |
| Dark Ages History | 0 | - | 4.42 | 32,669 |
| 30 Historical People You Probably Don't Know | 0 | - | 4.36 | 60,755 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 335,266 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,140 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,521 |
| World Capitals in the Answer | 0 | - | 4.94 | 76,224 |
| Monarchies of Europe | 0 | - | 4.90 | 97,228 |
| Monarchies of Asia | 0 | - | 4.97 | 70,545 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,008 |
