| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,111 |
| Famous Dictators #1 | 0 | - | 4.69 | 198,715 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,214 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,047 |
| Historical Rulers #2 | 0 | - | 4.26 | 47,195 |
| Historical Rulers #1 | 0 | - | 4.35 | 118,460 |
| World Leaders Quiz #1 | 0 | - | 4.11 | 109,625 |
| Words for Leaders | 0 | - | 4.77 | 255,048 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,074 |
| World Leaders Quiz #2 | 0 | - | 4.00 | 35,642 |
| UN Secretaries-General | 0 | - | 4.40 | 7,759 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,539 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,445 |
| NATO Countries | 0 | - | 4.98 | 275,508 |
| EU Countries Quiz | 0 | - | 4.99 | 269,734 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,285 |
| Political Figures by Last Name #1 | 0 | - | 4.55 | 67,391 |
| World Leaders of the Cold War | 0 | - | 4.27 | 25,114 |
| Military History Vocabulary | 0 | - | 4.91 | 66,621 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,274 |
| "Second Best" History Edition | 0 | - | 4.94 | 61,706 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,648 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.18 | 47,326 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,505 |
| World Leaders by Picture | 0 | - | 4.36 | 263,307 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,018 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,660 |
| Name the English Monarchs | 0 | - | 4.92 | 497,709 |
| OPEC Countries | 0 | - | 4.74 | 84,805 |
| Dictators by Picture | 0 | - | 4.18 | 48,848 |
| WWII Geography | 0 | - | 4.81 | 119,309 |
| WWII Figures by Picture | 0 | - | 4.85 | 50,484 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,468 |
| Empires by Maps | 0 | - | 4.98 | 118,347 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,192 |
| Political Quotes | 0 | - | 4.17 | 19,800 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,068 |
| NBA Players by Wikipedia Descriptions | 0 | - | 4.43 | 39,927 |
| Metals of Antiquity | 0 | - | 4.94 | 92,872 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,123 |
| History: What Came First? #1 | 0 | - | 4.87 | 104,137 |
| Spouses of World Leaders | 0 | - | 4.18 | 12,283 |
| First Names of Recent World Leaders | 0 | - | 4.25 | 24,839 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.48 | 15,748 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,638 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,734 |
| Influential Women in History | 0 | - | 4.42 | 34,926 |
| Cradles of Civilization | 0 | - | 4.46 | 38,988 |
| Popular Royal Names | 0 | - | 4.27 | 124,455 |
| Materials From History #1 | 0 | - | 4.56 | 50,547 |
| Historical Countries by Ruler | 0 | - | 4.48 | 48,029 |
| Paramount Leaders of China | 0 | - | 4.36 | 10,996 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,087 |
| Countries of the Popes | 0 | - | 4.79 | 127,159 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 704,192 |
| First Names of Painters | 0 | - | 4.43 | 59,590 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,117 |
| Famous Explorers | 0 | - | 4.58 | 35,926 |
| Famous Empires by Description | 0 | - | 4.70 | 117,504 |
| Answers by Time Period | 0 | - | 4.63 | 55,252 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,427 |
| History of The Netherlands | 0 | - | 4.46 | 17,305 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,570 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,518 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.95 | 40,675 |
| All Modern-Day Countries Ever Controlled by Arab People with a Map | 0 | - | 4.98 | 54,838 |
| All Modern-Day Countries Ever Controlled by the British | 0 | - | 4.81 | 49,341 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,773 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,062 |
| Countries with NO Military | 0 | - | 4.97 | 61,135 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 146,685 |
| Countries by Number of Books Published | 0 | - | 4.95 | 71,884 |
| Top Five Countries by Religion | 0 | - | 4.93 | 168,960 |
| 7 Deadly Sins | 0 | - | 4.88 | 394,664 |
| Books of the Protestant Bible | 0 | - | 4.89 | 207,071 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,318 |
| Former Flags | 0 | - | 4.97 | 106,625 |
| Years in History by Picture | 0 | - | 4.44 | 35,081 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,167 |
| Materials From History #2 | 0 | - | 4.59 | 30,903 |
| Historic Orient Express Routes Map | 0 | - | 5.00 | 52,932 |
| Political Figures by Last Name #2 | 0 | - | 3.88 | 16,585 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,624 |
| WWII Decoder | 0 | - | 4.41 | 53,022 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 54,726 |
| Cold War Decoder | 0 | - | 4.83 | 51,902 |
| 20th Century Dates Quiz | 0 | - | 4.56 | 39,310 |
| Events in History #2 | 0 | - | 4.49 | 71,405 |
| Events in History #4 | 0 | - | 4.44 | 44,084 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,351 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.21 | 48,797 |
| Assassinations in History | 0 | - | 4.20 | 65,936 |
| Famous Seconds | 0 | - | 4.22 | 46,378 |
| Ages and Eras Quiz | 0 | - | 4.38 | 67,435 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,382 |
| Titled People Quiz #1 | 0 | - | 4.10 | 45,599 |
| Titled People Quiz #3 | 0 | - | 4.34 | 43,022 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 75,812 |
| Female Historical Figures | 0 | - | 4.31 | 33,084 |
| Historical Blunders | 0 | - | 4.33 | 91,657 |
| Territorial Accessions | 0 | - | 4.38 | 34,621 |
| People Known as "The Great" | 0 | - | 4.46 | 24,504 |
| This Day in History - July | 0 | - | 4.49 | 36,367 |
| This Day in History - August | 0 | - | 4.42 | 43,241 |
| This Day in History - September | 0 | - | 4.55 | 57,248 |
| This Day in History - October | 0 | - | 4.49 | 37,548 |
| This Day in History - January | 0 | - | 4.53 | 46,566 |
| This Day in History - March | 0 | - | 4.45 | 43,537 |
| Ancient Civilizations | 0 | - | 4.63 | 37,737 |
| The Places They Went #1 | 0 | - | 4.74 | 33,442 |
| Famous Inventors | 0 | - | 4.43 | 43,447 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,446 |
| All Modern-Day Countries Ever Controlled by the Seljuks | 0 | - | 4.92 | 28,266 |
| European History for Dummies | 0 | - | 4.82 | 89,289 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,289 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.09 | 1,010,702 |
| U.S. States by Governor | 0 | - | 4.43 | 17,979 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,568 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,545 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 54,922 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,219 |
| Coldest World Capitals | 0 | - | 4.95 | 133,023 |
| World Currency Quiz | 0 | - | 4.92 | 298,205 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,728 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 122,007 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,696 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,083 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,628 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,386 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,877 |
| Buddhist Countries | 0 | - | 4.96 | 142,902 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,090,363 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,851 |
| The 2nd Millennium BC | 0 | - | 4.64 | 20,688 |
| Body Parts in History and Culture | 0 | - | 4.42 | 35,070 |
| History Analogies #1 | 0 | - | 4.53 | 89,765 |
| History Analogies #2 | 0 | - | 4.49 | 76,984 |
| Current Events by Year, 1990–2009 | 0 | - | 4.77 | 152,102 |
| Current Events by Year, 1970–1989 | 0 | - | 4.56 | 64,939 |
| Current Events by Year, 1930–1949 | 0 | - | 4.48 | 51,919 |
| History Analogies #3 | 0 | - | 4.61 | 80,419 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,124 |
| Which Came First? | 0 | - | 4.37 | 74,385 |
| Ancient Greece A-Z | 0 | - | 4.60 | 22,980 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,508 |
| Random History by Country | 0 | - | 4.53 | 34,649 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,527 |
| Animals in World History | 0 | - | 4.74 | 44,203 |
| People - Real or Fictional? | 0 | - | 4.56 | 58,442 |
| Places - Real or Fictional? | 0 | - | 4.59 | 49,344 |
| History True or False #3 | 0 | - | 4.43 | 55,899 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,303 |
| The Dictator Files: Fidel Castro | 0 | - | 4.19 | 12,254 |
| A to Z: Legendary Creatures | 0 | - | 4.26 | 52,727 |
| WWII First Names | 0 | - | 4.44 | 41,551 |
| WWII for Dummies | 0 | - | 4.80 | 103,781 |
| Cold War Trivia #1 | 0 | - | 4.41 | 56,926 |
| Events in History #3 | 0 | - | 4.40 | 71,430 |
| Events in History #1 | 0 | - | 4.34 | 157,245 |
| Events in Ancient History | 0 | - | 4.50 | 35,692 |
| People Who Died Young #1 | 0 | - | 4.24 | 63,529 |
| Deaths by Date and Cause #1 | 0 | - | 4.37 | 94,877 |
| Deaths by Date and Cause #2 | 0 | - | 4.15 | 67,462 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,523 |
| Countries That Were Invaded | 0 | - | 4.54 | 96,891 |
| This Day in History - April | 0 | - | 4.40 | 44,385 |
| This Day in History - May | 0 | - | 4.33 | 48,242 |
| This Day in History - June | 0 | - | 4.36 | 33,429 |
| This Day in History - November | 0 | - | 4.24 | 33,529 |
| This Day in History - December | 0 | - | 4.32 | 40,447 |
| This Day in History - February | 0 | - | 4.38 | 39,695 |
| The 19th Century | 0 | - | 4.53 | 67,868 |
| The 18th Century | 0 | - | 4.52 | 53,110 |
| The 16th Century | 0 | - | 4.77 | 58,730 |
| The 9th and 10th Century | 0 | - | 4.54 | 37,533 |
| The 21st Century | 0 | - | 4.48 | 105,264 |
| Battle to Country | 0 | - | 4.91 | 52,484 |
| The Life of King David | 0 | - | 4.37 | 14,056 |
| History Multiple Choice #1 | 0 | - | 4.46 | 81,497 |
| Years in History #2 - Multiple Choice | 0 | - | 4.43 | 41,398 |
| History Multiple Choice #2 | 0 | - | 4.43 | 49,787 |
| History Multiple Choice #3 | 0 | - | 4.45 | 48,529 |
| History Multiple Choice #5 | 0 | - | 4.49 | 32,256 |
| Three Real and One Fake - World History | 0 | - | 4.44 | 38,179 |
| English Royal Consorts | 0 | - | 4.37 | 37,151 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,600 |
| British History A-Z #1 | 0 | - | 4.45 | 45,792 |
| Kings of France Quiz | 0 | - | 4.20 | 32,548 |
| Dark Ages History | 0 | - | 4.42 | 32,671 |
| 30 Historical People You Probably Don't Know | 0 | - | 4.36 | 60,792 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 335,408 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,150 |
| World Capitals in the Answer | 0 | - | 4.94 | 76,269 |
| Monarchies of Europe | 0 | - | 4.90 | 97,275 |
| Monarchies of Asia | 0 | - | 4.97 | 70,577 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,021 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 193,849 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,107 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 188,439 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,519 |
