| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,364 |
| Famous Dictators #1 | 0 | - | 4.69 | 199,445 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,349 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,175 |
| Historical Rulers #2 | 0 | - | 4.26 | 47,378 |
| Historical Rulers #1 | 0 | - | 4.35 | 118,760 |
| World Leaders Quiz #1 | 0 | - | 4.11 | 109,918 |
| Words for Leaders | 0 | - | 4.77 | 256,769 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,372 |
| World Leaders Quiz #2 | 0 | - | 4.00 | 35,804 |
| UN Secretaries-General | 0 | - | 4.40 | 7,786 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,593 |
| Prime Ministers of the UK | 0 | - | 4.95 | 437,806 |
| NATO Countries | 0 | - | 4.98 | 279,220 |
| EU Countries Quiz | 0 | - | 4.99 | 272,838 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,772 |
| Political Figures by Last Name #1 | 0 | - | 4.55 | 67,837 |
| World Leaders of the Cold War | 0 | - | 4.27 | 25,245 |
| Military History Vocabulary | 0 | - | 4.91 | 67,028 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,162 |
| "Second Best" History Edition | 0 | - | 4.94 | 62,757 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,800 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.20 | 48,632 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,797 |
| World Leaders by Picture | 0 | - | 4.36 | 264,823 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,425 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,847 |
| Name the English Monarchs | 0 | - | 4.91 | 501,465 |
| All OPEC Countries Ever | 0 | - | 4.77 | 90,695 |
| Dictators by Picture | 0 | - | 4.18 | 49,082 |
| WWII Geography | 0 | - | 4.81 | 120,116 |
| WWII Figures by Picture | 0 | - | 4.89 | 65,117 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,537 |
| Empires by Maps | 0 | - | 4.98 | 119,950 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,607 |
| Political Quotes | 0 | - | 4.17 | 19,871 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,321 |
| NBA Players by Wikipedia Descriptions | 0 | - | 4.43 | 40,276 |
| Metals of Antiquity | 0 | - | 4.94 | 93,300 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,580 |
| History: What Came First? #1 | 0 | - | 4.87 | 105,061 |
| Spouses of World Leaders | 0 | - | 4.18 | 12,315 |
| First Names of Recent World Leaders | 0 | - | 4.25 | 24,960 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.48 | 15,832 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,186 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,916 |
| Influential Women in History | 0 | - | 4.42 | 35,500 |
| Cradles of Civilization | 0 | - | 4.46 | 39,552 |
| Popular Royal Names | 0 | - | 4.27 | 124,846 |
| Materials From History #1 | 0 | - | 4.56 | 51,477 |
| Historical Countries by Ruler | 0 | - | 4.48 | 48,534 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,049 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,901 |
| Countries of the Popes | 0 | - | 4.79 | 127,862 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 706,616 |
| First Names of Painters | 0 | - | 4.43 | 59,801 |
| Biggest Nations and Empires Ever | 0 | - | 4.52 | 145,731 |
| Famous Explorers | 0 | - | 4.58 | 36,119 |
| Famous Empires by Description | 0 | - | 4.73 | 118,323 |
| Answers by Time Period | 0 | - | 4.63 | 55,513 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,875 |
| History of The Netherlands | 0 | - | 4.46 | 17,407 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,648 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,918 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.94 | 40,943 |
| All Modern-Day Countries Ever Controlled by Arab People with a Map | 0 | - | 4.98 | 55,231 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 287,399 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 271,833 |
| Countries with NO Military | 0 | - | 4.97 | 61,941 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 147,965 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,387 |
| Top Five Countries by Religion | 0 | - | 4.93 | 170,703 |
| 7 Deadly Sins | 0 | - | 4.88 | 399,096 |
| Books of the Protestant Bible | 0 | - | 4.89 | 209,411 |
| Majority Muslim Countries | 0 | - | 4.98 | 373,130 |
| Former Flags | 0 | - | 4.97 | 107,460 |
| Years in History by Picture | 0 | - | 4.44 | 35,436 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,515 |
| Materials From History #2 | 0 | - | 4.59 | 31,452 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,871 |
| Historic Orient Express Routes Map | 0 | - | 4.99 | 53,396 |
| Political Figures by Last Name #2 | 0 | - | 3.88 | 16,697 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,762 |
| WWII Decoder | 0 | - | 4.41 | 53,473 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 55,284 |
| Cold War Decoder | 0 | - | 4.83 | 52,253 |
| 20th Century Dates Quiz | 0 | - | 4.56 | 39,385 |
| Events in History #2 | 0 | - | 4.49 | 71,638 |
| Events in History #4 | 0 | - | 4.44 | 44,261 |
| Name a Valid Year in History | 0 | - | 4.93 | 67,022 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.21 | 48,959 |
| Assassinations in History | 0 | - | 4.21 | 66,152 |
| Famous Seconds | 0 | - | 4.22 | 46,547 |
| Ages and Eras | 0 | - | 4.39 | 67,649 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,472 |
| Titled People Quiz #1 | 0 | - | 4.11 | 45,762 |
| Titled People Quiz #3 | 0 | - | 4.34 | 43,144 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 75,956 |
| Female Historical Figures | 0 | - | 4.28 | 33,223 |
| Historical Blunders | 0 | - | 4.34 | 91,892 |
| Territorial Accessions | 0 | - | 4.36 | 34,760 |
| People Known as "The Great" | 0 | - | 4.46 | 24,634 |
| This Day in History - July | 0 | - | 4.49 | 36,435 |
| This Day in History - August | 0 | - | 4.42 | 43,336 |
| This Day in History - September | 0 | - | 4.55 | 57,397 |
| This Day in History - October | 0 | - | 4.49 | 37,606 |
| This Day in History - January | 0 | - | 4.50 | 46,676 |
| This Day in History - March | 0 | - | 4.45 | 43,635 |
| Ancient Civilizations | 0 | - | 4.64 | 37,918 |
| The Places They Went #1 | 0 | - | 4.74 | 33,507 |
| Famous Inventors | 0 | - | 4.44 | 43,522 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,811 |
| All Modern-Day Countries Ever Controlled by the Seljuks | 0 | - | 4.92 | 28,458 |
| European History for Dummies | 0 | - | 4.83 | 89,752 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,742 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,573 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.09 | 1,013,138 |
| U.S. States by Governor | 0 | - | 4.43 | 18,042 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,669 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,649 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 55,238 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,115 |
| Coldest World Capitals | 0 | - | 4.95 | 133,452 |
| World Currency Quiz | 0 | - | 4.91 | 301,879 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 334,602 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,166 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,351 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,644 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 130,686 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,768 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,863 |
| Buddhist Countries | 0 | - | 4.96 | 143,708 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,095,747 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 319,725 |
| The 2nd Millennium BC | 0 | - | 4.64 | 20,810 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,246 |
| History Analogies #1 | 0 | - | 4.53 | 89,918 |
| History Analogies #2 | 0 | - | 4.49 | 77,159 |
| Current Events by Year, 1990–2009 | 0 | - | 4.77 | 152,489 |
| Current Events by Year, 1970–1989 | 0 | - | 4.56 | 65,121 |
| Current Events by Year, 1930–1949 | 0 | - | 4.48 | 52,049 |
| Groups of Things - History #1 | 0 | - | 4.41 | 94,001 |
| History Analogies #3 | 0 | - | 4.61 | 80,604 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,388 |
| Which Came First? | 0 | - | 4.37 | 74,705 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,117 |
| Random History by Country | 0 | - | 4.53 | 34,813 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,807 |
| Animals in World History | 0 | - | 4.74 | 44,428 |
| People - Real or Fictional? | 0 | - | 4.56 | 58,745 |
| Places - Real or Fictional? | 0 | - | 4.59 | 49,539 |
| History True or False #3 | 0 | - | 4.43 | 56,749 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,411 |
| The Dictator Files: Fidel Castro | 0 | - | 4.19 | 12,307 |
| A to Z: Legendary Creatures | 0 | - | 4.26 | 52,964 |
| WWII First Names | 0 | - | 4.44 | 41,744 |
| WWII for Dummies | 0 | - | 4.79 | 104,708 |
| Cold War Trivia #1 | 0 | - | 4.42 | 57,207 |
| Events in History #3 | 0 | - | 4.40 | 71,641 |
| Events in History #1 | 0 | - | 4.34 | 157,625 |
| Events in Ancient History | 0 | - | 4.50 | 35,928 |
| People Who Died Young #1 | 0 | - | 4.24 | 63,639 |
| Deaths by Date and Cause #1 | 0 | - | 4.38 | 95,149 |
| Deaths by Date and Cause #2 | 0 | - | 4.15 | 67,703 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,992 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,312 |
| This Day in History - April | 0 | - | 4.40 | 44,447 |
| This Day in History - May | 0 | - | 4.33 | 48,342 |
| This Day in History - June | 0 | - | 4.32 | 33,487 |
| This Day in History - November | 0 | - | 4.24 | 33,591 |
| This Day in History - December | 0 | - | 4.32 | 40,519 |
| This Day in History - February | 0 | - | 4.38 | 39,762 |
| The 19th Century | 0 | - | 4.53 | 68,081 |
| The 18th Century | 0 | - | 4.53 | 53,262 |
| The 16th Century | 0 | - | 4.77 | 58,853 |
| The 9th and 10th Century | 0 | - | 4.54 | 37,640 |
| The 21st Century | 0 | - | 4.48 | 105,816 |
| Battle to Country | 0 | - | 4.91 | 53,140 |
| The Life of King David | 0 | - | 4.37 | 14,113 |
| History Multiple Choice #1 | 0 | - | 4.44 | 81,853 |
| Years in History #2 - Multiple Choice | 0 | - | 4.43 | 41,609 |
| History Multiple Choice #2 | 0 | - | 4.43 | 50,001 |
| History Multiple Choice #3 | 0 | - | 4.45 | 48,705 |
| History Multiple Choice #5 | 0 | - | 4.49 | 32,427 |
| Three Real and One Fake - World History | 0 | - | 4.44 | 38,337 |
| English Royal Consorts | 0 | - | 4.37 | 37,322 |
| British History A-Z #1 | 0 | - | 4.45 | 46,400 |
| Kings of France Quiz | 0 | - | 4.20 | 32,682 |
| Dark Ages History | 0 | - | 4.42 | 32,742 |
| 30 Historical People You Probably Don't Know | 0 | - | 4.36 | 60,966 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 337,077 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,323 |
| World Capitals in the Answer | 0 | - | 4.94 | 76,866 |
| Monarchies of Europe | 0 | - | 4.90 | 97,948 |
| Monarchies of Asia | 0 | - | 4.97 | 70,975 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,151 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 194,879 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,084 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,396 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,274 |
