| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,089 |
| Famous Dictators #1 | 0 | - | 4.69 | 198,633 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,198 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,028 |
| Historical Rulers #2 | 0 | - | 4.26 | 47,171 |
| Historical Rulers #1 | 0 | - | 4.35 | 118,429 |
| World Leaders Quiz #1 | 0 | - | 4.11 | 109,599 |
| Words for Leaders | 0 | - | 4.77 | 254,914 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,045 |
| World Leaders Quiz #2 | 0 | - | 4.00 | 35,630 |
| UN Secretaries-General | 0 | - | 4.40 | 7,755 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,532 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,165 |
| NATO Countries | 0 | - | 4.98 | 275,204 |
| EU Countries Quiz | 0 | - | 4.99 | 269,506 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,246 |
| Political Figures by Last Name #1 | 0 | - | 4.56 | 67,350 |
| World Leaders of the Cold War | 0 | - | 4.27 | 25,100 |
| Military History Vocabulary | 0 | - | 4.91 | 66,594 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,188 |
| "Second Best" History Edition | 0 | - | 4.93 | 61,633 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,635 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.18 | 46,987 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,482 |
| World Leaders by Picture | 0 | - | 4.36 | 263,192 |
| Canadian Prime Ministers | 0 | - | 4.63 | 56,975 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,645 |
| Name the English Monarchs | 0 | - | 4.92 | 497,441 |
| OPEC Countries | 0 | - | 4.74 | 84,786 |
| Dictators by Picture | 0 | - | 4.17 | 48,838 |
| WWII Geography | 0 | - | 4.81 | 119,269 |
| WWII Figures by Picture | 0 | - | 4.85 | 50,423 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,343 |
| Empires by Maps | 0 | - | 4.98 | 118,203 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,155 |
| Political Quotes | 0 | - | 4.17 | 19,798 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,041 |
| NBA Players by Wikipedia Descriptions | 0 | - | 4.43 | 39,893 |
| Metals of Antiquity | 0 | - | 4.94 | 92,819 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,097 |
| History: What Came First? #1 | 0 | - | 4.87 | 104,076 |
| Spouses of World Leaders | 0 | - | 4.18 | 12,282 |
| First Names of Recent World Leaders | 0 | - | 4.25 | 24,828 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.48 | 15,739 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,613 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,720 |
| Influential Women in History | 0 | - | 4.42 | 34,899 |
| Cradles of Civilization | 0 | - | 4.46 | 38,963 |
| Popular Royal Names | 0 | - | 4.27 | 124,436 |
| Materials From History #1 | 0 | - | 4.56 | 50,522 |
| Historical Countries by Ruler | 0 | - | 4.48 | 47,989 |
| Paramount Leaders of China | 0 | - | 4.36 | 10,986 |
| Name the Popes Quiz | 0 | - | 4.47 | 136,973 |
| Countries of the Popes | 0 | - | 4.79 | 127,089 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 704,017 |
| First Names of Painters | 0 | - | 4.43 | 59,579 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,074 |
| Famous Explorers | 0 | - | 4.58 | 35,913 |
| Famous Empires by Description | 0 | - | 4.70 | 117,469 |
| Answers by Time Period | 0 | - | 4.63 | 55,231 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,401 |
| History of The Netherlands | 0 | - | 4.46 | 17,299 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,563 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,488 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.95 | 40,653 |
| All Modern-Day Countries Ever Controlled by Arab People with a Map | 0 | - | 4.98 | 54,820 |
| All Modern-Day Countries Ever Controlled by the British | 0 | - | 4.81 | 49,316 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,565 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 267,759 |
| Countries with NO Military | 0 | - | 4.97 | 61,078 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 146,602 |
| Countries by Number of Books Published | 0 | - | 4.95 | 71,846 |
| Top Five Countries by Religion | 0 | - | 4.93 | 168,810 |
| 7 Deadly Sins | 0 | - | 4.88 | 394,353 |
| Books of the Protestant Bible | 0 | - | 4.89 | 206,891 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,073 |
| Former Flags | 0 | - | 4.97 | 106,543 |
| Years in History by Picture | 0 | - | 4.44 | 35,055 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,149 |
| Materials From History #2 | 0 | - | 4.59 | 30,895 |
| Historic Orient Express Routes Map | 0 | - | 5.00 | 52,901 |
| Political Figures by Last Name #2 | 0 | - | 3.88 | 16,576 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,616 |
| WWII Decoder | 0 | - | 4.41 | 53,003 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 54,699 |
| Cold War Decoder | 0 | - | 4.83 | 51,883 |
| 20th Century Dates Quiz | 0 | - | 4.56 | 39,299 |
| Events in History #2 | 0 | - | 4.49 | 71,384 |
| Events in History #4 | 0 | - | 4.44 | 44,071 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,280 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.21 | 48,786 |
| Assassinations in History | 0 | - | 4.20 | 65,921 |
| Famous Seconds | 0 | - | 4.22 | 46,365 |
| Ages and Eras Quiz | 0 | - | 4.38 | 67,419 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,376 |
| Titled People Quiz #1 | 0 | - | 4.10 | 45,585 |
| Titled People Quiz #3 | 0 | - | 4.34 | 43,004 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 75,803 |
| Female Historical Figures | 0 | - | 4.31 | 33,074 |
| Historical Blunders | 0 | - | 4.33 | 91,637 |
| Territorial Accessions | 0 | - | 4.38 | 34,614 |
| People Known as "The Great" | 0 | - | 4.46 | 24,491 |
| This Day in History - July | 0 | - | 4.49 | 36,357 |
| This Day in History - August | 0 | - | 4.41 | 43,234 |
| This Day in History - September | 0 | - | 4.55 | 57,239 |
| This Day in History - October | 0 | - | 4.49 | 37,545 |
| This Day in History - January | 0 | - | 4.53 | 46,556 |
| This Day in History - March | 0 | - | 4.45 | 43,528 |
| Ancient Civilizations | 0 | - | 4.63 | 37,725 |
| The Places They Went #1 | 0 | - | 4.74 | 33,433 |
| Famous Inventors | 0 | - | 4.43 | 43,441 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,423 |
| All Modern-Day Countries Ever Controlled by the Seljuks | 0 | - | 4.92 | 28,254 |
| European History for Dummies | 0 | - | 4.82 | 89,235 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,257 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.09 | 1,010,043 |
| U.S. States by Governor | 0 | - | 4.43 | 17,972 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,558 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,530 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 54,894 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,163 |
| Coldest World Capitals | 0 | - | 4.95 | 132,990 |
| World Currency Quiz | 0 | - | 4.92 | 297,890 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,523 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 121,884 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,645 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,029 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,518 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,281 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,817 |
| Buddhist Countries | 0 | - | 4.96 | 142,838 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,089,919 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,629 |
| The 2nd Millennium BC | 0 | - | 4.64 | 20,677 |
| Body Parts in History and Culture | 0 | - | 4.42 | 34,994 |
| History Analogies #1 | 0 | - | 4.53 | 89,749 |
| History Analogies #2 | 0 | - | 4.49 | 76,971 |
| Current Events by Year, 1990–2009 | 0 | - | 4.77 | 152,069 |
| Current Events by Year, 1970–1989 | 0 | - | 4.56 | 64,930 |
| Current Events by Year, 1930–1949 | 0 | - | 4.48 | 51,907 |
| History Analogies #3 | 0 | - | 4.61 | 80,404 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,101 |
| Which Came First? | 0 | - | 4.37 | 74,366 |
| Ancient Greece A-Z | 0 | - | 4.60 | 22,972 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,486 |
| Random History by Country | 0 | - | 4.53 | 34,636 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,505 |
| Animals in World History | 0 | - | 4.74 | 44,194 |
| People - Real or Fictional? | 0 | - | 4.56 | 58,421 |
| Places - Real or Fictional? | 0 | - | 4.59 | 49,331 |
| History True or False #3 | 0 | - | 4.43 | 55,881 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,294 |
| The Dictator Files: Fidel Castro | 0 | - | 4.19 | 12,244 |
| A to Z: Legendary Creatures | 0 | - | 4.26 | 52,708 |
| WWII First Names | 0 | - | 4.45 | 41,537 |
| WWII for Dummies | 0 | - | 4.80 | 103,716 |
| Cold War Trivia #1 | 0 | - | 4.41 | 56,907 |
| Events in History #3 | 0 | - | 4.40 | 71,413 |
| Events in History #1 | 0 | - | 4.34 | 157,200 |
| Events in Ancient History | 0 | - | 4.50 | 35,673 |
| People Who Died Young #1 | 0 | - | 4.24 | 63,516 |
| Deaths by Date and Cause #1 | 0 | - | 4.37 | 94,848 |
| Deaths by Date and Cause #2 | 0 | - | 4.15 | 67,442 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,489 |
| Countries That Were Invaded | 0 | - | 4.54 | 96,870 |
| This Day in History - April | 0 | - | 4.39 | 44,380 |
| This Day in History - May | 0 | - | 4.32 | 48,237 |
| This Day in History - June | 0 | - | 4.35 | 33,425 |
| This Day in History - November | 0 | - | 4.24 | 33,526 |
| This Day in History - December | 0 | - | 4.31 | 40,442 |
| This Day in History - February | 0 | - | 4.38 | 39,690 |
| The 19th Century | 0 | - | 4.53 | 67,854 |
| The 18th Century | 0 | - | 4.52 | 53,101 |
| The 16th Century | 0 | - | 4.77 | 58,718 |
| The 9th and 10th Century | 0 | - | 4.54 | 37,520 |
| The 21st Century | 0 | - | 4.48 | 105,226 |
| Battle to Country | 0 | - | 4.91 | 52,448 |
| The Life of King David | 0 | - | 4.37 | 14,054 |
| History Multiple Choice #1 | 0 | - | 4.46 | 81,480 |
| Years in History #2 - Multiple Choice | 0 | - | 4.43 | 41,384 |
| History Multiple Choice #2 | 0 | - | 4.43 | 49,781 |
| History Multiple Choice #3 | 0 | - | 4.45 | 48,514 |
| History Multiple Choice #5 | 0 | - | 4.49 | 32,249 |
| Three Real and One Fake - World History | 0 | - | 4.44 | 38,169 |
| English Royal Consorts | 0 | - | 4.37 | 37,140 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,587 |
| British History A-Z #1 | 0 | - | 4.45 | 45,756 |
| Kings of France Quiz | 0 | - | 4.20 | 32,539 |
| Dark Ages History | 0 | - | 4.42 | 32,667 |
| 30 Historical People You Probably Don't Know | 0 | - | 4.36 | 60,753 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 335,256 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,140 |
| World Capitals in the Answer | 0 | - | 4.94 | 76,222 |
| Monarchies of Europe | 0 | - | 4.90 | 97,225 |
| Monarchies of Asia | 0 | - | 4.97 | 70,545 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,006 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 193,757 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,035 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 188,364 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,468 |
