| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,207 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,206 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,265 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,106 |
| Historical Rulers #2 | 0 | - | 4.26 | 47,279 |
| Historical Rulers #1 | 0 | - | 4.35 | 118,593 |
| World Leaders Quiz #1 | 0 | - | 4.11 | 109,751 |
| Words for Leaders | 0 | - | 4.77 | 255,752 |
| World Leaders Quiz #2 | 0 | - | 4.00 | 35,714 |
| UN Secretaries-General | 0 | - | 4.40 | 7,773 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,566 |
| Prime Ministers of the UK | 0 | - | 4.96 | 436,048 |
| NATO Countries | 0 | - | 4.98 | 277,440 |
| EU Countries Quiz | 0 | - | 4.99 | 271,057 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,486 |
| Political Figures by Last Name #1 | 0 | - | 4.55 | 67,607 |
| World Leaders of the Cold War | 0 | - | 4.27 | 25,171 |
| Military History Vocabulary | 0 | - | 4.91 | 66,774 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,648 |
| "Second Best" History Edition | 0 | - | 4.94 | 62,212 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,698 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.20 | 48,153 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,617 |
| World Leaders by Picture | 0 | - | 4.36 | 264,003 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,214 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,761 |
| Name the English Monarchs | 0 | - | 4.92 | 499,396 |
| OPEC Countries | 0 | - | 4.74 | 84,897 |
| Dictators by Picture | 0 | - | 4.18 | 48,961 |
| WWII Geography | 0 | - | 4.81 | 119,568 |
| WWII Figures by Picture | 0 | - | 4.85 | 50,970 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,953 |
| Empires by Maps | 0 | - | 4.98 | 119,042 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,382 |
| Political Quotes | 0 | - | 4.17 | 19,833 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,183 |
| Metals of Antiquity | 0 | - | 4.94 | 93,071 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,353 |
| History: What Came First? #1 | 0 | - | 4.87 | 104,448 |
| History - Did They Have It? | 0 | - | 4.84 | 61,267 |
| Spouses of World Leaders | 0 | - | 4.18 | 12,296 |
| First Names of Recent World Leaders | 0 | - | 4.25 | 24,900 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.48 | 15,785 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,793 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,820 |
| Influential Women in History | 0 | - | 4.42 | 35,237 |
| Cradles of Civilization | 0 | - | 4.46 | 39,295 |
| Popular Royal Names | 0 | - | 4.27 | 124,642 |
| Materials From History #1 | 0 | - | 4.56 | 51,276 |
| Historical Countries by Ruler | 0 | - | 4.48 | 48,320 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,018 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,440 |
| Countries of the Popes | 0 | - | 4.79 | 127,485 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 705,290 |
| First Names of Painters | 0 | - | 4.43 | 59,685 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,433 |
| Famous Explorers | 0 | - | 4.58 | 36,027 |
| Famous Empires by Description | 0 | - | 4.73 | 118,098 |
| Answers by Time Period | 0 | - | 4.63 | 55,378 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,674 |
| History of The Netherlands | 0 | - | 4.46 | 17,350 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,604 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,710 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.94 | 40,805 |
| All Modern-Day Countries Ever Controlled by Arab People with a Map | 0 | - | 4.98 | 55,021 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,893 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 269,685 |
| Countries with NO Military | 0 | - | 4.97 | 61,428 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 147,196 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,076 |
| Top Five Countries by Religion | 0 | - | 4.93 | 169,687 |
| 7 Deadly Sins | 0 | - | 4.88 | 396,967 |
| Books of the Protestant Bible | 0 | - | 4.89 | 208,191 |
| Majority Muslim Countries | 0 | - | 4.98 | 371,090 |
| Former Flags | 0 | - | 4.97 | 107,003 |
| Years in History by Picture | 0 | - | 4.44 | 35,233 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,305 |
| Materials From History #2 | 0 | - | 4.59 | 31,360 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,692 |
| Historic Orient Express Routes Map | 0 | - | 5.00 | 53,172 |
| Political Figures by Last Name #2 | 0 | - | 3.88 | 16,643 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,691 |
| WWII Decoder | 0 | - | 4.41 | 53,133 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 54,905 |
| Cold War Decoder | 0 | - | 4.83 | 52,064 |
| 20th Century Dates Quiz | 0 | - | 4.56 | 39,343 |
| Events in History #2 | 0 | - | 4.49 | 71,511 |
| Events in History #4 | 0 | - | 4.44 | 44,164 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,653 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.21 | 48,877 |
| Assassinations in History | 0 | - | 4.21 | 66,059 |
| Famous Seconds | 0 | - | 4.22 | 46,453 |
| Ages and Eras | 0 | - | 4.38 | 67,550 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,429 |
| Titled People Quiz #1 | 0 | - | 4.11 | 45,682 |
| Titled People Quiz #3 | 0 | - | 4.34 | 43,090 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 75,879 |
| Female Historical Figures | 0 | - | 4.27 | 33,152 |
| Historical Blunders | 0 | - | 4.34 | 91,783 |
| Territorial Accessions | 0 | - | 4.39 | 34,688 |
| People Known as "The Great" | 0 | - | 4.46 | 24,573 |
| This Day in History - July | 0 | - | 4.49 | 36,396 |
| This Day in History - August | 0 | - | 4.42 | 43,289 |
| This Day in History - September | 0 | - | 4.55 | 57,321 |
| This Day in History - October | 0 | - | 4.49 | 37,574 |
| This Day in History - January | 0 | - | 4.50 | 46,620 |
| This Day in History - March | 0 | - | 4.45 | 43,574 |
| Ancient Civilizations | 0 | - | 4.64 | 37,818 |
| The Places They Went #1 | 0 | - | 4.74 | 33,462 |
| Famous Inventors | 0 | - | 4.43 | 43,481 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,613 |
| All Modern-Day Countries Ever Controlled by the Seljuks | 0 | - | 4.92 | 28,347 |
| European History for Dummies | 0 | - | 4.83 | 89,496 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,662 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,405 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.09 | 1,011,829 |
| U.S. States by Governor | 0 | - | 4.43 | 18,002 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,606 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,586 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 55,074 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,588 |
| Coldest World Capitals | 0 | - | 4.95 | 133,164 |
| World Currency Quiz | 0 | - | 4.92 | 299,780 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 333,610 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 122,525 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,954 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,333 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,962 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,020 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,288 |
| Buddhist Countries | 0 | - | 4.96 | 143,242 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,092,818 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 318,042 |
| The 2nd Millennium BC | 0 | - | 4.64 | 20,734 |
| Body Parts in History and Culture | 0 | - | 4.42 | 35,184 |
| History Analogies #1 | 0 | - | 4.53 | 89,833 |
| History Analogies #2 | 0 | - | 4.49 | 77,062 |
| Current Events by Year, 1990–2009 | 0 | - | 4.77 | 152,279 |
| Current Events by Year, 1970–1989 | 0 | - | 4.56 | 65,024 |
| Current Events by Year, 1930–1949 | 0 | - | 4.48 | 51,973 |
| History Analogies #3 | 0 | - | 4.61 | 80,508 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,257 |
| Which Came First? | 0 | - | 4.37 | 74,499 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,057 |
| Random History by Country | 0 | - | 4.53 | 34,711 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,665 |
| Animals in World History | 0 | - | 4.74 | 44,310 |
| People - Real or Fictional? | 0 | - | 4.56 | 58,579 |
| Places - Real or Fictional? | 0 | - | 4.59 | 49,433 |
| History True or False #3 | 0 | - | 4.43 | 56,059 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,352 |
| The Dictator Files: Fidel Castro | 0 | - | 4.19 | 12,270 |
| A to Z: Legendary Creatures | 0 | - | 4.26 | 52,851 |
| WWII First Names | 0 | - | 4.44 | 41,625 |
| WWII for Dummies | 0 | - | 4.80 | 104,156 |
| Cold War Trivia #1 | 0 | - | 4.41 | 57,061 |
| Events in History #3 | 0 | - | 4.40 | 71,519 |
| Events in History #1 | 0 | - | 4.34 | 157,414 |
| Events in Ancient History | 0 | - | 4.50 | 35,794 |
| People Who Died Young #1 | 0 | - | 4.24 | 63,588 |
| Deaths by Date and Cause #1 | 0 | - | 4.38 | 94,997 |
| Deaths by Date and Cause #2 | 0 | - | 4.15 | 67,583 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,724 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,076 |
| This Day in History - April | 0 | - | 4.40 | 44,413 |
| This Day in History - May | 0 | - | 4.33 | 48,283 |
| This Day in History - June | 0 | - | 4.36 | 33,454 |
| This Day in History - November | 0 | - | 4.24 | 33,556 |
| This Day in History - December | 0 | - | 4.32 | 40,476 |
| This Day in History - February | 0 | - | 4.38 | 39,728 |
| The 19th Century | 0 | - | 4.53 | 67,943 |
| The 18th Century | 0 | - | 4.52 | 53,161 |
| The 16th Century | 0 | - | 4.77 | 58,778 |
| The 9th and 10th Century | 0 | - | 4.54 | 37,576 |
| The 21st Century | 0 | - | 4.48 | 105,488 |
| Battle to Country | 0 | - | 4.91 | 52,718 |
| The Life of King David | 0 | - | 4.37 | 14,084 |
| History Multiple Choice #1 | 0 | - | 4.46 | 81,635 |
| Years in History #2 - Multiple Choice | 0 | - | 4.43 | 41,464 |
| History Multiple Choice #2 | 0 | - | 4.43 | 49,866 |
| History Multiple Choice #3 | 0 | - | 4.45 | 48,590 |
| History Multiple Choice #5 | 0 | - | 4.49 | 32,321 |
| Three Real and One Fake - World History | 0 | - | 4.44 | 38,246 |
| English Royal Consorts | 0 | - | 4.37 | 37,242 |
| British History A-Z #1 | 0 | - | 4.45 | 46,244 |
| Kings of France Quiz | 0 | - | 4.20 | 32,608 |
| Dark Ages History | 0 | - | 4.42 | 32,698 |
| 30 Historical People You Probably Don't Know | 0 | - | 4.36 | 60,886 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 336,187 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,230 |
| World Capitals in the Answer | 0 | - | 4.94 | 76,515 |
| Monarchies of Europe | 0 | - | 4.90 | 97,569 |
| Monarchies of Asia | 0 | - | 4.97 | 70,752 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,076 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 194,311 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,553 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 188,856 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,733 |
| Richest Island Countries | 0 | - | 4.84 | 99,834 |
| Largest Economies in 2050 | 0 | - | 4.90 | 110,877 |
