| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,400 |
| Famous Dictators #1 | 0 | - | 4.69 | 199,516 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,372 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,201 |
| Historical Rulers #2 | 0 | - | 4.26 | 47,402 |
| Historical Rulers #1 | 0 | - | 4.35 | 118,799 |
| World Leaders Quiz #1 | 0 | - | 4.11 | 109,948 |
| Words for Leaders | 0 | - | 4.77 | 256,868 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,410 |
| World Leaders Quiz #2 | 0 | - | 4.00 | 35,816 |
| UN Secretaries-General | 0 | - | 4.40 | 7,787 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,601 |
| NATO Countries | 0 | - | 4.98 | 279,371 |
| EU Countries Quiz | 0 | - | 4.99 | 272,959 |
| Prime Ministers of the UK | 0 | - | 4.95 | 437,949 |
| "Second Best" History Edition | 0 | - | 4.94 | 62,799 |
| World Leaders of the Cold War | 0 | - | 4.27 | 25,251 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,789 |
| Military History Vocabulary | 0 | - | 4.91 | 67,046 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,203 |
| Political Figures by Last Name #1 | 0 | - | 4.55 | 67,860 |
| World Leaders by Picture | 0 | - | 4.36 | 264,889 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,435 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,813 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,853 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.20 | 48,669 |
| All OPEC Countries Ever | 0 | - | 4.77 | 90,821 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,807 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,576 |
| Empires by Maps | 0 | - | 4.98 | 120,015 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,617 |
| WWII Geography | 0 | - | 4.81 | 120,136 |
| WWII Figures by Picture | 0 | - | 4.89 | 65,186 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,332 |
| Name the English Monarchs | 0 | - | 4.91 | 501,614 |
| Dictators by Picture | 0 | - | 4.18 | 49,101 |
| Political Quotes | 0 | - | 4.17 | 19,873 |
| Influential Women in History | 0 | - | 4.42 | 35,513 |
| Metals of Antiquity | 0 | - | 4.95 | 93,329 |
| Cradles of Civilization | 0 | - | 4.46 | 39,567 |
| Materials From History #1 | 0 | - | 4.56 | 51,486 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,597 |
| Historical Countries by Ruler | 0 | - | 4.48 | 48,545 |
| History: What Came First? #1 | 0 | - | 4.87 | 105,092 |
| Spouses of World Leaders | 0 | - | 4.18 | 12,317 |
| First Names of Recent World Leaders | 0 | - | 4.25 | 24,962 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.48 | 15,839 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 706,724 |
| Biggest Nations and Empires Ever | 0 | - | 4.52 | 145,753 |
| Famous Explorers | 0 | - | 4.58 | 36,125 |
| Famous Empires by Description | 0 | - | 4.73 | 118,337 |
| Answers by Time Period | 0 | - | 4.64 | 55,522 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,201 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,925 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,891 |
| Popular Royal Names | 0 | - | 4.27 | 124,853 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,052 |
| First Names of Painters | 0 | - | 4.43 | 59,810 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.94 | 40,953 |
| All Modern-Day Countries Ever Controlled by Arab People with a Map | 0 | - | 4.98 | 55,247 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 287,502 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 271,968 |
| Countries with NO Military | 0 | - | 4.97 | 61,980 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 148,021 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,417 |
| Top Five Countries by Religion | 0 | - | 4.93 | 170,797 |
| Books of the Protestant Bible | 0 | - | 4.89 | 209,466 |
| Years in History by Picture | 0 | - | 4.44 | 35,445 |
| History of The Netherlands | 0 | - | 4.46 | 17,410 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,530 |
| Materials From History #2 | 0 | - | 4.59 | 31,456 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,658 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,930 |
| Countries of the Popes | 0 | - | 4.79 | 127,894 |
| 20th Century Dates Quiz | 0 | - | 4.56 | 39,386 |
| Events in History #2 | 0 | - | 4.49 | 71,650 |
| Events in History #4 | 0 | - | 4.44 | 44,265 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.21 | 48,964 |
| Assassinations in History | 0 | - | 4.21 | 66,158 |
| Famous Seconds | 0 | - | 4.22 | 46,550 |
| Ages and Eras | 0 | - | 4.39 | 67,653 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,473 |
| Titled People Quiz #1 | 0 | - | 4.11 | 45,764 |
| Titled People Quiz #3 | 0 | - | 4.34 | 43,145 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 75,959 |
| Female Historical Figures | 0 | - | 4.28 | 33,224 |
| Historical Blunders | 0 | - | 4.34 | 91,901 |
| Territorial Accessions | 0 | - | 4.36 | 34,762 |
| People Known as "The Great" | 0 | - | 4.46 | 24,643 |
| This Day in History - July | 0 | - | 4.49 | 36,435 |
| This Day in History - August | 0 | - | 4.42 | 43,340 |
| This Day in History - September | 0 | - | 4.55 | 57,406 |
| This Day in History - October | 0 | - | 4.49 | 37,607 |
| This Day in History - January | 0 | - | 4.50 | 46,683 |
| This Day in History - March | 0 | - | 4.45 | 43,641 |
| Ancient Civilizations | 0 | - | 4.64 | 37,921 |
| The Places They Went #1 | 0 | - | 4.74 | 33,517 |
| Famous Inventors | 0 | - | 4.44 | 43,525 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.09 | 1,013,235 |
| 7 Deadly Sins | 0 | - | 4.88 | 399,224 |
| Majority Muslim Countries | 0 | - | 4.98 | 373,270 |
| Former Flags | 0 | - | 4.97 | 107,498 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,888 |
| Historic Orient Express Routes Map | 0 | - | 4.99 | 53,410 |
| Political Figures by Last Name #2 | 0 | - | 3.88 | 16,702 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,766 |
| WWII Decoder | 0 | - | 4.41 | 53,483 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 55,308 |
| Cold War Decoder | 0 | - | 4.83 | 52,262 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,935 |
| Name a Valid Year in History | 0 | - | 4.93 | 67,053 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,823 |
| All Modern-Day Countries Ever Controlled by the Seljuks | 0 | - | 4.92 | 28,464 |
| European History for Dummies | 0 | - | 4.83 | 89,769 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,746 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,587 |
| U.S. States by Governor | 0 | - | 4.43 | 18,045 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,672 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,651 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 55,255 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,152 |
| Coldest World Capitals | 0 | - | 4.95 | 133,468 |
| World Currency Quiz | 0 | - | 4.91 | 302,013 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 334,840 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,213 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,372 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,668 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 130,709 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,818 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,911 |
| Buddhist Countries | 0 | - | 4.96 | 143,952 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,095,967 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 319,881 |
| The 2nd Millennium BC | 0 | - | 4.64 | 20,817 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,251 |
| History Analogies #1 | 0 | - | 4.53 | 89,926 |
| History Analogies #2 | 0 | - | 4.49 | 77,172 |
| Current Events by Year, 1990–2009 | 0 | - | 4.77 | 152,512 |
| Current Events by Year, 1970–1989 | 0 | - | 4.56 | 65,129 |
| Current Events by Year, 1930–1949 | 0 | - | 4.48 | 52,058 |
| Groups of Things - History #1 | 0 | - | 4.41 | 94,012 |
| History Analogies #3 | 0 | - | 4.61 | 80,609 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,406 |
| Which Came First? | 0 | - | 4.37 | 74,713 |
| Christopher Columbus Quiz | 0 | - | 4.21 | 8,287 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,119 |
| Random History by Country | 0 | - | 4.53 | 34,820 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,820 |
| Animals in World History | 0 | - | 4.74 | 44,434 |
| People - Real or Fictional? | 0 | - | 4.56 | 58,752 |
| Places - Real or Fictional? | 0 | - | 4.59 | 49,547 |
| History True or False #3 | 0 | - | 4.43 | 56,764 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,417 |
| A to Z: Legendary Creatures | 0 | - | 4.26 | 52,975 |
| WWII First Names | 0 | - | 4.44 | 41,749 |
| WWII for Dummies | 0 | - | 4.79 | 104,739 |
| Cold War Trivia #1 | 0 | - | 4.42 | 57,214 |
| Events in History #3 | 0 | - | 4.40 | 71,648 |
| Events in History #1 | 0 | - | 4.34 | 157,638 |
| Events in Ancient History | 0 | - | 4.50 | 35,935 |
| Born Here on This Date #1 | 0 | - | 3.92 | 35,353 |
| Famous Founders in the U.S. | 0 | - | 3.98 | 34,334 |
| People Who Died Young #1 | 0 | - | 4.24 | 63,642 |
| Titled People Quiz #2 | 0 | - | 4.38 | 26,732 |
| Deaths by Date and Cause #1 | 0 | - | 4.38 | 95,160 |
| Deaths by Date and Cause #2 | 0 | - | 4.15 | 67,716 |
| Job Titles Quiz #2 | 0 | - | 3.62 | 37,306 |
| Famous Ships Quiz | 0 | - | 4.25 | 29,234 |
| Famous Short People | 0 | - | 4.39 | 17,611 |
| Name the Alliance | 0 | - | 4.29 | 29,549 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,001 |
| Coups d'Etat - Name the Country | 0 | - | 4.40 | 27,666 |
| Famous Documents | 0 | - | 4.05 | 21,818 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,329 |
| Legendary Deeds | 0 | - | 4.16 | 28,908 |
| Disasters in History | 0 | - | 4.40 | 25,666 |
| Executions in History | 0 | - | 4.30 | 16,961 |
| This Day in History - April | 0 | - | 4.40 | 44,452 |
| This Day in History - May | 0 | - | 4.33 | 48,347 |
| This Day in History - June | 0 | - | 4.32 | 33,489 |
| This Day in History - November | 0 | - | 4.24 | 33,592 |
| This Day in History - December | 0 | - | 4.32 | 40,524 |
| This Day in History - February | 0 | - | 4.38 | 39,764 |
| The 19th Century | 0 | - | 4.53 | 68,087 |
| The 18th Century | 0 | - | 4.53 | 53,267 |
| The 16th Century | 0 | - | 4.77 | 58,856 |
| The 9th and 10th Century | 0 | - | 4.54 | 37,647 |
| The 21st Century | 0 | - | 4.48 | 105,835 |
| Battle to Country | 0 | - | 4.91 | 53,165 |
| The Life of King David | 0 | - | 4.37 | 14,114 |
| History Multiple Choice #1 | 0 | - | 4.44 | 81,868 |
| Years in History #2 - Multiple Choice | 0 | - | 4.43 | 41,613 |
| History Multiple Choice #2 | 0 | - | 4.43 | 50,005 |
| History Multiple Choice #3 | 0 | - | 4.45 | 48,706 |
| History Multiple Choice #5 | 0 | - | 4.49 | 32,432 |
| Three Real and One Fake - World History | 0 | - | 4.44 | 38,346 |
| British History A-Z #1 | 0 | - | 4.45 | 46,408 |
| Dark Ages History | 0 | - | 4.42 | 32,743 |
| 30 Historical People You Probably Don't Know | 0 | - | 4.36 | 60,975 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 337,137 |
