| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,096 |
| Famous Dictators #1 | 0 | - | 4.69 | 198,657 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,204 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,034 |
| Historical Rulers #2 | 0 | - | 4.26 | 47,176 |
| Historical Rulers #1 | 0 | - | 4.35 | 118,433 |
| World Leaders Quiz #1 | 0 | - | 4.11 | 109,606 |
| Words for Leaders | 0 | - | 4.77 | 254,953 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,054 |
| World Leaders Quiz #2 | 0 | - | 4.00 | 35,634 |
| UN Secretaries-General | 0 | - | 4.40 | 7,756 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,533 |
| NATO Countries | 0 | - | 4.98 | 275,272 |
| EU Countries Quiz | 0 | - | 4.99 | 269,567 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,231 |
| "Second Best" History Edition | 0 | - | 4.93 | 61,646 |
| World Leaders of the Cold War | 0 | - | 4.27 | 25,103 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,254 |
| Military History Vocabulary | 0 | - | 4.91 | 66,599 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,213 |
| Political Figures by Last Name #1 | 0 | - | 4.56 | 67,360 |
| World Leaders by Picture | 0 | - | 4.36 | 263,219 |
| Canadian Prime Ministers | 0 | - | 4.63 | 56,982 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,638 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,647 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.18 | 47,082 |
| OPEC Countries | 0 | - | 4.74 | 84,788 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,492 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,355 |
| Empires by Maps | 0 | - | 4.98 | 118,233 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,160 |
| WWII Geography | 0 | - | 4.81 | 119,279 |
| WWII Figures by Picture | 0 | - | 4.85 | 50,436 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,044 |
| Name the English Monarchs | 0 | - | 4.92 | 497,514 |
| Dictators by Picture | 0 | - | 4.17 | 48,839 |
| Political Quotes | 0 | - | 4.17 | 19,799 |
| Influential Women in History | 0 | - | 4.42 | 34,908 |
| Metals of Antiquity | 0 | - | 4.94 | 92,823 |
| Cradles of Civilization | 0 | - | 4.46 | 38,968 |
| Materials From History #1 | 0 | - | 4.56 | 50,526 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,104 |
| Historical Countries by Ruler | 0 | - | 4.48 | 47,994 |
| History: What Came First? #1 | 0 | - | 4.87 | 104,087 |
| History - Did They Have It? | 0 | - | 4.84 | 61,046 |
| Spouses of World Leaders | 0 | - | 4.18 | 12,283 |
| First Names of Recent World Leaders | 0 | - | 4.25 | 24,833 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.48 | 15,743 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 704,057 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,079 |
| Famous Explorers | 0 | - | 4.58 | 35,917 |
| Famous Empires by Description | 0 | - | 4.70 | 117,472 |
| Answers by Time Period | 0 | - | 4.63 | 55,231 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,617 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,721 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,403 |
| Popular Royal Names | 0 | - | 4.27 | 124,441 |
| Paramount Leaders of China | 0 | - | 4.36 | 10,989 |
| First Names of Painters | 0 | - | 4.43 | 59,580 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.95 | 40,657 |
| All Modern-Day Countries Ever Controlled by Arab People with a Map | 0 | - | 4.98 | 54,824 |
| All Modern-Day Countries Ever Controlled by the British | 0 | - | 4.81 | 49,319 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,609 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 267,826 |
| Countries with NO Military | 0 | - | 4.97 | 61,095 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 146,620 |
| Countries by Number of Books Published | 0 | - | 4.95 | 71,860 |
| Top Five Countries by Religion | 0 | - | 4.93 | 168,850 |
| Books of the Protestant Bible | 0 | - | 4.89 | 206,947 |
| Years in History by Picture | 0 | - | 4.44 | 35,062 |
| History of The Netherlands | 0 | - | 4.46 | 17,299 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,153 |
| Materials From History #2 | 0 | - | 4.59 | 30,895 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,563 |
| Name the Popes Quiz | 0 | - | 4.47 | 136,988 |
| Countries of the Popes | 0 | - | 4.79 | 127,102 |
| 20th Century Dates Quiz | 0 | - | 4.56 | 39,301 |
| Events in History #2 | 0 | - | 4.49 | 71,388 |
| Events in History #4 | 0 | - | 4.44 | 44,074 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.21 | 48,789 |
| Assassinations in History | 0 | - | 4.20 | 65,923 |
| Famous Seconds | 0 | - | 4.22 | 46,369 |
| Ages and Eras Quiz | 0 | - | 4.38 | 67,420 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,378 |
| Titled People Quiz #1 | 0 | - | 4.10 | 45,586 |
| Titled People Quiz #3 | 0 | - | 4.34 | 43,008 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 75,805 |
| Female Historical Figures | 0 | - | 4.31 | 33,078 |
| Historical Blunders | 0 | - | 4.33 | 91,638 |
| Territorial Accessions | 0 | - | 4.38 | 34,614 |
| People Known as "The Great" | 0 | - | 4.46 | 24,493 |
| This Day in History - July | 0 | - | 4.49 | 36,359 |
| This Day in History - August | 0 | - | 4.41 | 43,234 |
| This Day in History - September | 0 | - | 4.55 | 57,242 |
| This Day in History - October | 0 | - | 4.49 | 37,545 |
| This Day in History - January | 0 | - | 4.53 | 46,557 |
| This Day in History - March | 0 | - | 4.45 | 43,529 |
| Ancient Civilizations | 0 | - | 4.63 | 37,730 |
| The Places They Went #1 | 0 | - | 4.74 | 33,435 |
| Famous Inventors | 0 | - | 4.43 | 43,443 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.09 | 1,010,085 |
| 7 Deadly Sins | 0 | - | 4.88 | 394,409 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,112 |
| Former Flags | 0 | - | 4.97 | 106,554 |
| Historic Orient Express Routes Map | 0 | - | 5.00 | 52,911 |
| Political Figures by Last Name #2 | 0 | - | 3.88 | 16,578 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,618 |
| WWII Decoder | 0 | - | 4.41 | 53,008 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 54,707 |
| Cold War Decoder | 0 | - | 4.83 | 51,889 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,493 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,289 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,428 |
| All Modern-Day Countries Ever Controlled by the Seljuks | 0 | - | 4.92 | 28,255 |
| European History for Dummies | 0 | - | 4.82 | 89,243 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,260 |
| U.S. States by Governor | 0 | - | 4.43 | 17,976 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,563 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,533 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 54,899 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,177 |
| Coldest World Capitals | 0 | - | 4.95 | 132,997 |
| World Currency Quiz | 0 | - | 4.92 | 297,949 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,573 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 121,910 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,663 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,048 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,545 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,302 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,831 |
| Buddhist Countries | 0 | - | 4.96 | 142,853 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,090,014 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,669 |
| The 2nd Millennium BC | 0 | - | 4.64 | 20,679 |
| Body Parts in History and Culture | 0 | - | 4.42 | 34,995 |
| History Analogies #1 | 0 | - | 4.53 | 89,752 |
| History Analogies #2 | 0 | - | 4.49 | 76,973 |
| Current Events by Year, 1990–2009 | 0 | - | 4.77 | 152,074 |
| Current Events by Year, 1970–1989 | 0 | - | 4.56 | 64,931 |
| Current Events by Year, 1930–1949 | 0 | - | 4.48 | 51,911 |
| History Analogies #3 | 0 | - | 4.61 | 80,408 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,105 |
| Which Came First? | 0 | - | 4.37 | 74,369 |
| Christopher Columbus Quiz | 0 | - | 4.21 | 8,248 |
| Ancient Greece A-Z | 0 | - | 4.60 | 22,973 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,491 |
| Random History by Country | 0 | - | 4.53 | 34,637 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,509 |
| Animals in World History | 0 | - | 4.74 | 44,198 |
| People - Real or Fictional? | 0 | - | 4.56 | 58,432 |
| Places - Real or Fictional? | 0 | - | 4.59 | 49,333 |
| History True or False #3 | 0 | - | 4.43 | 55,882 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,295 |
| A to Z: Legendary Creatures | 0 | - | 4.26 | 52,711 |
| WWII First Names | 0 | - | 4.45 | 41,540 |
| WWII for Dummies | 0 | - | 4.80 | 103,725 |
| Cold War Trivia #1 | 0 | - | 4.41 | 56,909 |
| Events in History #3 | 0 | - | 4.40 | 71,417 |
| Events in History #1 | 0 | - | 4.34 | 157,206 |
| Events in Ancient History | 0 | - | 4.50 | 35,676 |
| Born Here on This Date #1 | 0 | - | 3.92 | 35,272 |
| People Who Died Young #1 | 0 | - | 4.24 | 63,518 |
| Titled People Quiz #2 | 0 | - | 4.38 | 26,630 |
| Deaths by Date and Cause #1 | 0 | - | 4.37 | 94,853 |
| Deaths by Date and Cause #2 | 0 | - | 4.15 | 67,446 |
| Job Titles Quiz #2 | 0 | - | 3.62 | 37,220 |
| Famous Ships Quiz | 0 | - | 4.25 | 29,145 |
| Short Historical Figures | 0 | - | 4.29 | 8,335 |
| Name the Alliance | 0 | - | 4.29 | 29,106 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,498 |
| Coups | 0 | - | 4.40 | 27,571 |
| Famous Documents | 0 | - | 4.05 | 21,756 |
| Countries That Were Invaded | 0 | - | 4.54 | 96,875 |
| Legendary Deeds | 0 | - | 4.16 | 28,849 |
| Disasters in History | 0 | - | 4.40 | 25,596 |
| Executions in History | 0 | - | 4.29 | 16,910 |
| This Day in History - April | 0 | - | 4.39 | 44,381 |
| 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 | 33,527 |
| This Day in History - December | 0 | - | 4.31 | 40,442 |
| This Day in History - February | 0 | - | 4.38 | 39,692 |
| The 19th Century | 0 | - | 4.53 | 67,861 |
| The 18th Century | 0 | - | 4.52 | 53,104 |
| The 16th Century | 0 | - | 4.77 | 58,721 |
| The 9th and 10th Century | 0 | - | 4.54 | 37,526 |
| The 21st Century | 0 | - | 4.48 | 105,237 |
| Battle to Country | 0 | - | 4.91 | 52,456 |
| The Life of King David | 0 | - | 4.37 | 14,056 |
| History Multiple Choice #1 | 0 | - | 4.46 | 81,482 |
| Years in History #2 - Multiple Choice | 0 | - | 4.43 | 41,387 |
| History Multiple Choice #2 | 0 | - | 4.43 | 49,781 |
| History Multiple Choice #3 | 0 | - | 4.45 | 48,515 |
| History Multiple Choice #5 | 0 | - | 4.49 | 32,251 |
| Three Real and One Fake - World History | 0 | - | 4.44 | 38,173 |
| British History A-Z #1 | 0 | - | 4.45 | 45,770 |
| Dark Ages History | 0 | - | 4.42 | 32,669 |
| 30 Historical People You Probably Don't Know | 0 | - | 4.36 | 60,757 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 335,280 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,145 |
