| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,273 |
| Famous Dictators #1 | 0 | - | 4.69 | 199,165 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,291 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,125 |
| Historical Rulers #1 | 0 | - | 4.35 | 118,647 |
| World Leaders Quiz #1 | 0 | - | 4.11 | 109,789 |
| Words for Leaders | 0 | - | 4.77 | 255,945 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,248 |
| World Leaders Quiz #2 | 0 | - | 4.00 | 35,739 |
| UN Secretaries-General | 0 | - | 4.40 | 7,777 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,575 |
| NATO Countries | 0 | - | 4.98 | 277,944 |
| EU Countries Quiz | 0 | - | 4.99 | 271,486 |
| Prime Ministers of the UK | 0 | - | 4.96 | 436,500 |
| "Second Best" History Edition | 0 | - | 4.94 | 62,360 |
| World Leaders of the Cold War | 0 | - | 4.27 | 25,197 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,582 |
| Military History Vocabulary | 0 | - | 4.91 | 66,847 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,795 |
| Political Figures by Last Name #1 | 0 | - | 4.55 | 67,660 |
| World Leaders by Picture | 0 | - | 4.36 | 264,226 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,263 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,743 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,780 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.20 | 48,281 |
| OPEC Countries | 0 | - | 4.74 | 85,203 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,673 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,111 |
| Empires by Maps | 0 | - | 4.98 | 119,261 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,441 |
| WWII Geography | 0 | - | 4.81 | 119,848 |
| WWII Figures by Picture | 0 | - | 4.89 | 63,537 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,223 |
| Name the English Monarchs | 0 | - | 4.92 | 499,975 |
| Dictators by Picture | 0 | - | 4.18 | 48,994 |
| Political Quotes | 0 | - | 4.17 | 19,843 |
| Influential Women in History | 0 | - | 4.42 | 35,289 |
| Metals of Antiquity | 0 | - | 4.94 | 93,112 |
| Cradles of Civilization | 0 | - | 4.46 | 39,363 |
| Materials From History #1 | 0 | - | 4.56 | 51,324 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,408 |
| Historical Countries by Ruler | 0 | - | 4.48 | 48,371 |
| History: What Came First? #1 | 0 | - | 4.87 | 104,757 |
| History - Did They Have It? | 0 | - | 4.84 | 61,455 |
| Spouses of World Leaders | 0 | - | 4.18 | 12,302 |
| First Names of Recent World Leaders | 0 | - | 4.25 | 24,917 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.48 | 15,800 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 705,671 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,509 |
| Famous Explorers | 0 | - | 4.58 | 36,046 |
| Famous Empires by Description | 0 | - | 4.73 | 118,150 |
| Answers by Time Period | 0 | - | 4.64 | 55,410 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,010 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,842 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,751 |
| Popular Royal Names | 0 | - | 4.27 | 124,700 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,027 |
| First Names of Painters | 0 | - | 4.43 | 59,724 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.94 | 40,839 |
| All Modern-Day Countries Ever Controlled by Arab People with a Map | 0 | - | 4.98 | 55,094 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 286,257 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 270,240 |
| Countries with NO Military | 0 | - | 4.97 | 61,560 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 147,373 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,151 |
| Top Five Countries by Religion | 0 | - | 4.93 | 169,931 |
| Books of the Protestant Bible | 0 | - | 4.89 | 208,588 |
| Years in History by Picture | 0 | - | 4.44 | 35,297 |
| History of The Netherlands | 0 | - | 4.46 | 17,354 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,404 |
| Materials From History #2 | 0 | - | 4.59 | 31,387 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,617 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,544 |
| Countries of the Popes | 0 | - | 4.79 | 127,572 |
| 20th Century Dates Quiz | 0 | - | 4.56 | 39,355 |
| Events in History #2 | 0 | - | 4.49 | 71,550 |
| Events in History #4 | 0 | - | 4.44 | 44,193 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.21 | 48,897 |
| Assassinations in History | 0 | - | 4.21 | 66,080 |
| Famous Seconds | 0 | - | 4.22 | 46,488 |
| Ages and Eras | 0 | - | 4.38 | 67,577 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,440 |
| Titled People Quiz #1 | 0 | - | 4.11 | 45,700 |
| Titled People Quiz #3 | 0 | - | 4.34 | 43,103 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 75,899 |
| Female Historical Figures | 0 | - | 4.27 | 33,176 |
| Historical Blunders | 0 | - | 4.34 | 91,804 |
| Territorial Accessions | 0 | - | 4.39 | 34,705 |
| People Known as "The Great" | 0 | - | 4.46 | 24,589 |
| This Day in History - July | 0 | - | 4.49 | 36,410 |
| This Day in History - August | 0 | - | 4.42 | 43,304 |
| This Day in History - September | 0 | - | 4.55 | 57,342 |
| This Day in History - October | 0 | - | 4.49 | 37,582 |
| This Day in History - January | 0 | - | 4.50 | 46,632 |
| This Day in History - March | 0 | - | 4.45 | 43,583 |
| Ancient Civilizations | 0 | - | 4.64 | 37,834 |
| The Places They Went #1 | 0 | - | 4.74 | 33,472 |
| Famous Inventors | 0 | - | 4.43 | 43,494 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.09 | 1,012,173 |
| 7 Deadly Sins | 0 | - | 4.88 | 397,545 |
| Majority Muslim Countries | 0 | - | 4.98 | 371,668 |
| Former Flags | 0 | - | 4.97 | 107,145 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,733 |
| Historic Orient Express Routes Map | 0 | - | 5.00 | 53,229 |
| Political Figures by Last Name #2 | 0 | - | 3.88 | 16,653 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,710 |
| WWII Decoder | 0 | - | 4.41 | 53,330 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 55,111 |
| Cold War Decoder | 0 | - | 4.83 | 52,108 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,765 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,730 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,659 |
| All Modern-Day Countries Ever Controlled by the Seljuks | 0 | - | 4.92 | 28,382 |
| European History for Dummies | 0 | - | 4.83 | 89,559 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,681 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,456 |
| U.S. States by Governor | 0 | - | 4.43 | 18,012 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,618 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,602 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 55,115 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,722 |
| Coldest World Capitals | 0 | - | 4.95 | 133,206 |
| World Currency Quiz | 0 | - | 4.92 | 300,377 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 333,874 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 122,692 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,074 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,417 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 130,073 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,230 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,457 |
| Buddhist Countries | 0 | - | 4.96 | 143,355 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,093,631 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 318,521 |
| The 2nd Millennium BC | 0 | - | 4.64 | 20,751 |
| Body Parts in History and Culture | 0 | - | 4.42 | 35,198 |
| History Analogies #1 | 0 | - | 4.53 | 89,849 |
| History Analogies #2 | 0 | - | 4.49 | 77,087 |
| Current Events by Year, 1990–2009 | 0 | - | 4.77 | 152,324 |
| Current Events by Year, 1970–1989 | 0 | - | 4.56 | 65,050 |
| Current Events by Year, 1930–1949 | 0 | - | 4.48 | 51,982 |
| History Analogies #3 | 0 | - | 4.61 | 80,529 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,288 |
| Which Came First? | 0 | - | 4.37 | 74,588 |
| Christopher Columbus Quiz | 0 | - | 4.21 | 8,275 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,074 |
| Random History by Country | 0 | - | 4.53 | 34,731 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,702 |
| Animals in World History | 0 | - | 4.74 | 44,342 |
| People - Real or Fictional? | 0 | - | 4.56 | 58,626 |
| Places - Real or Fictional? | 0 | - | 4.59 | 49,459 |
| History True or False #3 | 0 | - | 4.43 | 56,529 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,375 |
| A to Z: Legendary Creatures | 0 | - | 4.26 | 52,874 |
| WWII First Names | 0 | - | 4.44 | 41,673 |
| WWII for Dummies | 0 | - | 4.80 | 104,335 |
| Cold War Trivia #1 | 0 | - | 4.41 | 57,098 |
| Events in History #3 | 0 | - | 4.40 | 71,553 |
| Events in History #1 | 0 | - | 4.34 | 157,470 |
| Events in Ancient History | 0 | - | 4.50 | 35,830 |
| Born Here on This Date #1 | 0 | - | 3.92 | 35,323 |
| People Who Died Young #1 | 0 | - | 4.24 | 63,602 |
| Titled People Quiz #2 | 0 | - | 4.38 | 26,696 |
| Deaths by Date and Cause #1 | 0 | - | 4.38 | 95,032 |
| Deaths by Date and Cause #2 | 0 | - | 4.15 | 67,619 |
| Job Titles Quiz #2 | 0 | - | 3.62 | 37,290 |
| Famous Ships Quiz | 0 | - | 4.25 | 29,213 |
| Famous Short People | 0 | - | 4.37 | 17,183 |
| Name the Alliance | 0 | - | 4.29 | 29,354 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,796 |
| Coups d'Etat - Name the Country | 0 | - | 4.40 | 27,628 |
| Famous Documents | 0 | - | 4.05 | 21,795 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,150 |
| Legendary Deeds | 0 | - | 4.16 | 28,884 |
| Disasters in History | 0 | - | 4.40 | 25,633 |
| Executions in History | 0 | - | 4.29 | 16,940 |
| This Day in History - April | 0 | - | 4.40 | 44,428 |
| This Day in History - May | 0 | - | 4.33 | 48,301 |
| This Day in History - June | 0 | - | 4.36 | 33,465 |
| This Day in History - November | 0 | - | 4.24 | 33,570 |
| This Day in History - December | 0 | - | 4.32 | 40,486 |
| This Day in History - February | 0 | - | 4.38 | 39,738 |
| The 19th Century | 0 | - | 4.53 | 67,967 |
| The 18th Century | 0 | - | 4.52 | 53,180 |
| The 16th Century | 0 | - | 4.77 | 58,791 |
| The 9th and 10th Century | 0 | - | 4.54 | 37,590 |
| The 21st Century | 0 | - | 4.48 | 105,555 |
| Battle to Country | 0 | - | 4.91 | 52,882 |
| The Life of King David | 0 | - | 4.37 | 14,094 |
| History Multiple Choice #1 | 0 | - | 4.46 | 81,720 |
| Years in History #2 - Multiple Choice | 0 | - | 4.43 | 41,534 |
| History Multiple Choice #2 | 0 | - | 4.43 | 49,926 |
| History Multiple Choice #3 | 0 | - | 4.45 | 48,638 |
| History Multiple Choice #5 | 0 | - | 4.49 | 32,365 |
| Three Real and One Fake - World History | 0 | - | 4.44 | 38,277 |
| Trace the Route of Marco Polo on a Map | 0 | - | 5.00 | 42,102 |
| British History A-Z #1 | 0 | - | 4.45 | 46,287 |
| Dark Ages History | 0 | - | 4.42 | 32,708 |
| 30 Historical People You Probably Don't Know | 0 | - | 4.36 | 60,904 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 336,445 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,256 |
