| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,306 |
| Famous Dictators #1 | 0 | - | 4.69 | 199,289 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,314 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,142 |
| Historical Rulers #2 | 0 | - | 4.26 | 47,336 |
| Historical Rulers #1 | 0 | - | 4.35 | 118,699 |
| World Leaders Quiz #1 | 0 | - | 4.11 | 109,847 |
| Words for Leaders | 0 | - | 4.77 | 256,413 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,301 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,669 |
| Prime Ministers of the UK | 0 | - | 4.95 | 436,996 |
| WWII Geography | 0 | - | 4.81 | 119,969 |
| WWII Figures by Picture | 0 | - | 4.89 | 64,527 |
| World Leaders Quiz #2 | 0 | - | 4.00 | 35,769 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,768 |
| UN Secretaries-General | 0 | - | 4.40 | 7,781 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,581 |
| NATO Countries | 0 | - | 4.98 | 278,483 |
| EU Countries Quiz | 0 | - | 4.99 | 272,045 |
| Communist Countries in History | 0 | - | 4.63 | 494,232 |
| Military History Vocabulary | 0 | - | 4.91 | 66,917 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,943 |
| Political Figures by Last Name #1 | 0 | - | 4.55 | 67,725 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.20 | 48,431 |
| World Leaders by Picture | 0 | - | 4.36 | 264,469 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,324 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,806 |
| Name the English Monarchs | 0 | - | 4.91 | 500,530 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,725 |
| "Second Best" History Edition | 0 | - | 4.94 | 62,536 |
| Dictators by Picture | 0 | - | 4.18 | 49,029 |
| WWII Decoder | 0 | - | 4.41 | 53,391 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 55,188 |
| All OPEC Countries Ever | 0 | - | 4.74 | 89,670 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,306 |
| Empires by Maps | 0 | - | 4.98 | 119,598 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,501 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,438 |
| WWII for Dummies | 0 | - | 4.79 | 104,506 |
| Modern-Day Axis-Occupied Countries of WWII on a Map | 0 | - | 4.99 | 85,475 |
| Countries in World War I | 0 | - | 4.88 | 227,574 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,826 |
| Political Quotes | 0 | - | 4.17 | 19,857 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,273 |
| Spouses of World Leaders | 0 | - | 4.18 | 12,305 |
| First Names of Recent World Leaders | 0 | - | 4.25 | 24,929 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.48 | 15,810 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,872 |
| Metals of Antiquity | 0 | - | 4.94 | 93,192 |
| Popular Royal Names | 0 | - | 4.27 | 124,762 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,488 |
| History: What Came First? #1 | 0 | - | 4.87 | 104,895 |
| History - Did They Have It? | 0 | - | 4.84 | 61,547 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,038 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,669 |
| Countries of the Popes | 0 | - | 4.79 | 127,675 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 706,038 |
| First Names of Painters | 0 | - | 4.43 | 59,759 |
| Countries in World War II | 0 | - | 4.54 | 909,185 |
| WWII Movies by Plot | 0 | - | 4.21 | 27,040 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,088 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,797 |
| Influential Women in History | 0 | - | 4.42 | 35,387 |
| Cradles of Civilization | 0 | - | 4.46 | 39,453 |
| History of The Netherlands | 0 | - | 4.46 | 17,375 |
| Materials From History #1 | 0 | - | 4.56 | 51,387 |
| Historical Countries by Ruler | 0 | - | 4.48 | 48,435 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,633 |
| Biggest Nations and Empires Ever | 0 | - | 4.52 | 145,598 |
| Famous Explorers | 0 | - | 4.58 | 36,079 |
| Famous Empires by Description | 0 | - | 4.73 | 118,231 |
| Answers by Time Period | 0 | - | 4.64 | 55,454 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.94 | 40,888 |
| All Modern-Day Countries Ever Controlled by Arab People with a Map | 0 | - | 4.98 | 55,152 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 286,712 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 270,848 |
| Countries with NO Military | 0 | - | 4.97 | 61,735 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 147,624 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,260 |
| Top Five Countries by Religion | 0 | - | 4.93 | 170,267 |
| 7 Deadly Sins | 0 | - | 4.88 | 398,158 |
| Books of the Protestant Bible | 0 | - | 4.89 | 208,950 |
| Majority Muslim Countries | 0 | - | 4.98 | 372,299 |
| Former Flags | 0 | - | 4.97 | 107,274 |
| Years in History by Picture | 0 | - | 4.44 | 35,371 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,094 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,448 |
| Materials From History #2 | 0 | - | 4.59 | 31,423 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 31,802 |
| Historic Orient Express Routes Map | 0 | - | 4.99 | 53,284 |
| Political Figures by Last Name #2 | 0 | - | 3.88 | 16,668 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,393 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,732 |
| Former Capitals | 0 | - | 4.88 | 71,314 |
| Important Cities in WWII | 0 | - | 4.42 | 93,247 |
| WWII A-Z #1 | 0 | - | 4.78 | 102,732 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,521 |
| WWII First Names | 0 | - | 4.44 | 41,699 |
| Cold War Decoder | 0 | - | 4.83 | 52,164 |
| 20th Century Dates Quiz | 0 | - | 4.56 | 39,369 |
| Events in History #2 | 0 | - | 4.49 | 71,590 |
| Events in History #4 | 0 | - | 4.44 | 44,226 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,849 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.21 | 48,925 |
| Assassinations in History | 0 | - | 4.21 | 66,112 |
| Famous Seconds | 0 | - | 4.22 | 46,511 |
| Ages and Eras | 0 | - | 4.39 | 67,602 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,458 |
| Titled People Quiz #1 | 0 | - | 4.11 | 45,733 |
| Titled People Quiz #3 | 0 | - | 4.34 | 43,121 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 75,931 |
| Female Historical Figures | 0 | - | 4.27 | 33,200 |
| Historical Blunders | 0 | - | 4.34 | 91,841 |
| Territorial Accessions | 0 | - | 4.39 | 34,723 |
| People Known as "The Great" | 0 | - | 4.46 | 24,606 |
| This Day in History - July | 0 | - | 4.49 | 36,422 |
| This Day in History - August | 0 | - | 4.42 | 43,321 |
| This Day in History - September | 0 | - | 4.55 | 57,368 |
| This Day in History - October | 0 | - | 4.49 | 37,592 |
| This Day in History - January | 0 | - | 4.50 | 46,650 |
| This Day in History - March | 0 | - | 4.45 | 43,602 |
| Ancient Civilizations | 0 | - | 4.64 | 37,865 |
| The Places They Went #1 | 0 | - | 4.74 | 33,490 |
| Famous Inventors | 0 | - | 4.43 | 43,504 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,720 |
| All Modern-Day Countries Ever Controlled by the Seljuks | 0 | - | 4.92 | 28,412 |
| European History for Dummies | 0 | - | 4.83 | 89,636 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,705 |
| British History A-Z #1 | 0 | - | 4.45 | 46,330 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,511 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.09 | 1,012,564 |
| U.S. States by Governor | 0 | - | 4.43 | 18,026 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,634 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,292 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,618 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 55,162 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,896 |
| Coldest World Capitals | 0 | - | 4.95 | 133,253 |
| World Currency Quiz | 0 | - | 4.92 | 300,974 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 334,151 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 122,882 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,191 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,508 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 130,193 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,451 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,618 |
| Buddhist Countries | 0 | - | 4.96 | 143,504 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,094,410 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 319,036 |
| The 2nd Millennium BC | 0 | - | 4.64 | 20,773 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,222 |
| History Analogies #1 | 0 | - | 4.53 | 89,878 |
| History Analogies #2 | 0 | - | 4.49 | 77,119 |
| Current Events by Year, 1990–2009 | 0 | - | 4.77 | 152,391 |
| Current Events by Year, 1970–1989 | 0 | - | 4.56 | 65,078 |
| Current Events by Year, 1930–1949 | 0 | - | 4.48 | 52,017 |
| Groups of Things - History #1 | 0 | - | 4.41 | 93,899 |
| History Analogies #3 | 0 | - | 4.61 | 80,559 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,326 |
| Which Came First? | 0 | - | 4.37 | 74,651 |
| Random History by Country | 0 | - | 4.53 | 34,761 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,747 |
| Animals in World History | 0 | - | 4.74 | 44,378 |
| People - Real or Fictional? | 0 | - | 4.56 | 58,665 |
| Places - Real or Fictional? | 0 | - | 4.59 | 49,488 |
| History True or False #3 | 0 | - | 4.43 | 56,638 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,894 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,408 |
| The Dictator Files: Fidel Castro | 0 | - | 4.19 | 12,290 |
| Pope Facts | 0 | - | 4.39 | 31,149 |
| A to Z: Legendary Creatures | 0 | - | 4.26 | 52,912 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,515 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,307 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,551 |
| Cold War Trivia #1 | 0 | - | 4.42 | 57,139 |
| Events in History #3 | 0 | - | 4.40 | 71,586 |
| Events in History #1 | 0 | - | 4.34 | 157,539 |
| Events in Ancient History | 0 | - | 4.50 | 35,869 |
| People Who Died Young #1 | 0 | - | 4.24 | 63,618 |
| Deaths by Date and Cause #1 | 0 | - | 4.38 | 95,078 |
| Deaths by Date and Cause #2 | 0 | - | 4.15 | 67,651 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,853 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,218 |
| This Day in History - April | 0 | - | 4.40 | 44,435 |
| This Day in History - May | 0 | - | 4.33 | 48,322 |
| This Day in History - June | 0 | - | 4.32 | 33,477 |
| This Day in History - November | 0 | - | 4.24 | 33,581 |
| This Day in History - December | 0 | - | 4.32 | 40,505 |
| This Day in History - February | 0 | - | 4.38 | 39,751 |
| The 19th Century | 0 | - | 4.53 | 67,996 |
| The 18th Century | 0 | - | 4.52 | 53,202 |
| The 16th Century | 0 | - | 4.77 | 58,814 |
| The 9th and 10th Century | 0 | - | 4.54 | 37,610 |
| The 21st Century | 0 | - | 4.48 | 105,631 |
| Battle to Country | 0 | - | 4.91 | 52,997 |
| The Life of King David | 0 | - | 4.37 | 14,103 |
| History Multiple Choice #1 | 0 | - | 4.46 | 81,767 |
| Years in History #2 - Multiple Choice | 0 | - | 4.43 | 41,568 |
| History Multiple Choice #2 | 0 | - | 4.43 | 49,956 |
| History Multiple Choice #3 | 0 | - | 4.45 | 48,664 |
