| Famous Dictators Quiz #1 | 0 | - | 4.74 | 185,284 |
| G7 Leaders Since 2003 | 0 | - | 4.46 | 39,026 |
| Historical Leaders by Date #1 | 0 | - | 4.46 | 28,539 |
| Historical Leaders by Date #2 | 0 | - | 4.54 | 27,461 |
| Historical Rulers #2 | 0 | - | 4.26 | 43,587 |
| Historical Rulers #1 | 0 | - | 4.32 | 112,182 |
| World Leaders Quiz #1 | 0 | - | 4.12 | 102,868 |
| UN Secretaries-General | 0 | - | 4.42 | 7,196 |
| Words for Leaders | 0 | - | 4.80 | 220,301 |
| World Leaders Quiz #2 | 0 | - | 4.01 | 25,245 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 18,489 |
| Prime Ministers of the UK | 0 | - | 4.95 | 387,164 |
| NATO Countries Quiz | 0 | - | 4.98 | 229,246 |
| EU Countries Quiz | 0 | - | 4.99 | 231,342 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.76 | 59,163 |
| Political Figures by Last Name #1 | 0 | - | 4.57 | 61,231 |
| World Leaders of the Cold War | 0 | - | 4.34 | 22,701 |
| Military History Vocabulary | 0 | - | 4.92 | 60,987 |
| U.S. Citizenship Test Questions | 0 | - | 4.86 | 224,253 |
| "Second Best" History Edition | 0 | - | 4.94 | 48,240 |
| World Leaders of the World Wars | 0 | - | 4.40 | 34,731 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.20 | 41,079 |
| Countries of the Popes | 0 | - | 4.84 | 113,396 |
| Famous Empires in History | 0 | - | 4.83 | 106,111 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 68,131 |
| World Leaders by Picture | 0 | - | 4.38 | 242,757 |
| Canadian Prime Ministers Quiz | 0 | - | 4.65 | 50,621 |
| English Monarchs Quiz | 0 | - | 4.91 | 454,461 |
| OPEC Countries Quiz | 0 | - | 4.72 | 81,445 |
| Dictators by Picture | 0 | - | 4.24 | 45,086 |
| WWII Figures by Picture | 0 | - | 4.87 | 41,737 |
| Former Countries by Territory Map | 0 | - | 4.96 | 87,438 |
| Empires by Maps | 0 | - | 4.98 | 97,193 |
| Prime Ministers of Australia | 0 | - | 4.48 | 28,490 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 47,129 |
| Political Quotes Quiz | 0 | - | 4.09 | 19,074 |
| Metals of Antiquity | 0 | - | 4.93 | 86,337 |
| Animals in World History | 0 | - | 4.82 | 40,882 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 40,569 |
| History: What Came First? #1 | 0 | - | 4.84 | 92,712 |
| Political Figures by Last Name #2 | 0 | - | 4.05 | 14,957 |
| Spouses of World Leaders | 0 | - | 4.16 | 11,665 |
| First Names of Recent World Leaders | 0 | - | 4.29 | 23,106 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.47 | 14,080 |
| Years in History #1 - Multiple Choice | 0 | - | 4.84 | 63,904 |
| European Secessionist Movements on a Map | 0 | - | 4.51 | 31,894 |
| Cradles of Civilization | 0 | - | 4.42 | 33,081 |
| Popular Royal Names | 0 | - | 4.27 | 117,855 |
| Materials From History #1 | 0 | - | 4.54 | 45,528 |
| Paramount Leaders of China | 0 | - | 4.31 | 10,051 |
| Name the Popes Quiz | 0 | - | 4.46 | 124,731 |
| Mythical Creatures Quiz #1 | 0 | - | 4.91 | 662,629 |
| Biggest Nations and Empires Ever | 0 | - | 4.55 | 135,299 |
| Famous Explorers | 0 | - | 4.65 | 32,997 |
| Answers by Time Period | 0 | - | 4.50 | 43,077 |
| Territorial Accessions | 0 | - | 4.43 | 32,497 |
| History of The Netherlands | 0 | - | 4.43 | 15,954 |
| The Dictator Files: Chairman Mao | 0 | - | 4.32 | 18,707 |
| WWII Geography | 0 | - | 4.79 | 100,806 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 88,400 |
| The Life of King David | 0 | - | 4.43 | 13,497 |
| Top 10 Oldest African Countries | 0 | - | 4.84 | 23,555 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 229,225 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 234,743 |
| Countries with NO Military | 0 | - | 4.97 | 50,844 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 128,152 |
| All Disney Animated Movies | 0 | - | 4.84 | 403,518 |
| Countries by Number of Books Published | 0 | - | 4.95 | 64,737 |
| Top Five Countries by Religion | 0 | - | 4.90 | 145,594 |
| 7 Deadly Sins Quiz | 0 | - | 4.86 | 349,089 |
| Books of the Protestant Bible | 0 | - | 4.87 | 182,415 |
| Majority Muslim Countries | 0 | - | 4.97 | 317,285 |
| Influential Women in History | 0 | - | 4.47 | 30,680 |
| Former Flags | 0 | - | 4.97 | 82,856 |
| Historical Events - AD or BC? | 0 | - | 4.74 | 52,800 |
| Materials From History #2 | 0 | - | 4.58 | 25,056 |
| Prime Ministers of Israel | 0 | - | 4.10 | 16,379 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.42 | 24,288 |
| Pope Facts | 0 | - | 4.41 | 28,461 |
| First Names of Painters | 0 | - | 4.38 | 56,751 |
| WWII Decoder | 0 | - | 4.44 | 49,420 |
| Name a Valid Answer - World War II | 0 | - | 4.51 | 48,912 |
| 20th Century Dates Quiz | 0 | - | 4.53 | 38,106 |
| Events in History #2 | 0 | - | 4.47 | 67,530 |
| Events in History #4 | 0 | - | 4.44 | 41,438 |
| Name a Valid Year in History | 0 | - | 4.92 | 54,957 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.18 | 46,828 |
| Assassinations in History Quiz | 0 | - | 4.17 | 63,392 |
| Famous Seconds Quiz | 0 | - | 4.21 | 44,735 |
| Ages and Eras Quiz | 0 | - | 4.35 | 64,826 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.22 | 38,420 |
| Titled People Quiz #1 | 0 | - | 4.14 | 44,019 |
| Titled People Quiz #3 | 0 | - | 4.33 | 41,478 |
| Job Titles Quiz #1 | 0 | - | 4.23 | 73,784 |
| Historical Blunders | 0 | - | 4.32 | 87,546 |
| This Day in History - April | 0 | - | 4.42 | 43,479 |
| This Day in History - July | 0 | - | 4.48 | 35,302 |
| This Day in History - August | 0 | - | 4.41 | 42,004 |
| This Day in History - September | 0 | - | 4.55 | 55,235 |
| This Day in History - October | 0 | - | 4.49 | 36,464 |
| This Day in History - January | 0 | - | 4.53 | 44,779 |
| This Day in History - February | 0 | - | 4.41 | 38,594 |
| This Day in History - March | 0 | - | 4.44 | 42,189 |
| The 7 Wonders of the Ancient World | 0 | - | 4.80 | 65,810 |
| Ancient Civilizations | 0 | - | 4.56 | 34,933 |
| The Places They Went #1 | 0 | - | 4.76 | 32,551 |
| Famous Inventors | 0 | - | 4.44 | 42,557 |
| Houses of British Monarchs | 0 | - | 4.49 | 52,880 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.14 | 954,867 |
| U.S. States by Governor Quiz | 0 | - | 4.42 | 17,066 |
| U.S. Political Parties in History | 0 | - | 4.43 | 26,334 |
| U.S. Government Agencies | 0 | - | 4.42 | 17,909 |
| Red State or Blue State Trait? | 0 | - | 4.44 | 49,363 |
| Countries with the Most Tanks | 0 | - | 4.88 | 76,711 |
| Coldest World Capitals | 0 | - | 4.96 | 128,734 |
| World Currency Quiz | 0 | - | 4.92 | 251,044 |
| Countries with the Most Millionaires | 0 | - | 4.85 | 86,214 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 42,690 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 67,498 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 119,738 |
| Countries with the Most Christians | 0 | - | 4.93 | 124,128 |
| Least Christian Countries with Exceptions | 0 | - | 4.89 | 74,597 |
| Buddhist Countries | 0 | - | 4.97 | 132,184 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,016,967 |
| Body Parts in History and Culture | 0 | - | 4.48 | 33,132 |
| History Analogies #1 | 0 | - | 4.47 | 76,548 |
| History Analogies #2 | 0 | - | 4.51 | 64,984 |
| Current Events by Year, 1990–2009 | 0 | - | 4.76 | 145,528 |
| Current Events by Year, 1970–1989 | 0 | - | 4.56 | 62,056 |
| Current Events by Year, 1930–1949 | 0 | - | 4.48 | 49,854 |
| History Analogies #3 | 0 | - | 4.54 | 67,137 |
| People Born on Islands | 0 | - | 4.41 | 40,451 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.72 | 54,439 |
| Which Came First? | 0 | - | 4.35 | 69,906 |
| Years in History by Picture | 0 | - | 4.43 | 30,554 |
| Valid Answer - World History #2 | 0 | - | 4.42 | 40,147 |
| Ancient Greece A-Z | 0 | - | 4.63 | 21,083 |
| States of the German Confederation in 1848 | 0 | - | 4.85 | 27,134 |
| Random History by Country | 0 | - | 4.54 | 31,852 |
| Valid Answer - World History #1 | 0 | - | 4.58 | 57,056 |
| Places - Real or Fictional? | 0 | - | 4.56 | 46,260 |
| History True or False #3 | 0 | - | 4.55 | 37,718 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.64 | 21,149 |
| The Dictator Files: Fidel Castro | 0 | - | 4.15 | 10,814 |
| A to Z: Legendary Creatures | 0 | - | 4.31 | 48,846 |
| WWII First Names | 0 | - | 4.46 | 39,027 |
| WWII for Dummies | 0 | - | 4.76 | 93,459 |
| Events in History #3 | 0 | - | 4.35 | 68,195 |
| Events in History #1 | 0 | - | 4.32 | 150,678 |
| Events in Ancient History | 0 | - | 4.49 | 32,491 |
| People Who Died Young #1 | 0 | - | 4.24 | 61,934 |
| Deaths by Date and Cause #1 | 0 | - | 4.39 | 78,239 |
| Deaths by Date and Cause #2 | 0 | - | 4.04 | 50,391 |
| Famous Firsts #1 | 0 | - | 4.42 | 66,195 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 67,189 |
| Invasions | 0 | - | 4.70 | 90,415 |
| First Names of Historical Figures #1 | 0 | - | 4.41 | 218,142 |
| This Day in History - May | 0 | - | 4.30 | 47,119 |
| This Day in History - June | 0 | - | 4.34 | 32,747 |
| This Day in History - November | 0 | - | 4.23 | 32,696 |
| This Day in History - December | 0 | - | 4.30 | 39,318 |
| The 19th Century | 0 | - | 4.51 | 63,336 |
| The 18th Century | 0 | - | 4.50 | 49,331 |
| The 16th Century | 0 | - | 4.71 | 50,589 |
| 19th Century A-Z | 0 | - | 4.81 | 34,792 |
| The 21st Century | 0 | - | 4.50 | 95,746 |
| Battle to Country | 0 | - | 4.92 | 36,740 |
| History by Picture - N | 0 | - | 4.41 | 37,087 |
| History Multiple Choice #1 | 0 | - | 4.44 | 76,799 |
| History Multiple Choice #2 | 0 | - | 4.43 | 47,311 |
| History Multiple Choice #3 | 0 | - | 4.45 | 46,223 |
| English Royal Consorts | 0 | - | 4.29 | 34,863 |
| The Reign of Queen Elizabeth I | 0 | - | 4.50 | 29,921 |
| British History A-Z | 0 | - | 4.47 | 40,120 |
| Dark Ages History | 0 | - | 4.43 | 31,737 |
| 30 Historical People You Probably Don't Know | 0 | - | 4.37 | 56,615 |
| The 2nd Millennium BC | 0 | - | 4.52 | 12,398 |
| The U.S. Government - How Does it Work? | 0 | - | 4.32 | 40,179 |
| World Capitals in the Answer | 0 | - | 4.94 | 68,466 |
| Most Powerful Countries Bordering Each Other | 0 | - | 4.85 | 50,477 |
| Monarchies of Europe | 0 | - | 4.89 | 88,212 |
| Monarchies of Asia | 0 | - | 4.95 | 54,796 |
| Capital Cities with the Least Precipitation | 0 | - | 4.90 | 27,636 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 285,156 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 179,477 |
| Countries with the Most Exports | 0 | - | 4.96 | 140,511 |
| Top Crude Oil Producing Countries | 0 | - | 4.90 | 174,331 |
| Countries by Oil Consumption | 0 | - | 4.96 | 112,693 |
| Richest Island Countries | 0 | - | 4.86 | 89,573 |
| Largest Economies in 2050 | 0 | - | 4.89 | 101,462 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 89,478 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 242,218 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 91,526 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.86 | 68,047 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 100,216 |
| Catholic Countries Quiz | 0 | - | 4.82 | 199,744 |
| Countries with the Most Catholics | 0 | - | 4.91 | 95,430 |
| Catholic Countries in Europe | 0 | - | 4.86 | 85,308 |
| Orthodox Countries | 0 | - | 4.91 | 119,324 |
| Countries with the Most Muslims | 0 | - | 4.93 | 133,549 |
