| World Leaders by Picture | 0 | - | 4.36 | 264,729 |
| Words for Leaders | 0 | - | 4.77 | 256,662 |
| Dictators by Picture | 0 | - | 4.18 | 49,065 |
| Political Figures by Last Name #1 | 0 | - | 4.55 | 67,806 |
| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,339 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,406 |
| Prime Ministers of the UK | 0 | - | 4.95 | 437,534 |
| Famous Dictators #1 | 0 | - | 4.69 | 199,404 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,340 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,163 |
| Historical Rulers #2 | 0 | - | 4.26 | 47,368 |
| Historical Rulers #1 | 0 | - | 4.35 | 118,748 |
| World Leaders Quiz #1 | 0 | - | 4.11 | 109,900 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,752 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,355 |
| "Second Best" History Edition | 0 | - | 4.94 | 62,713 |
| Spouses of World Leaders | 0 | - | 4.18 | 12,309 |
| World Leaders Quiz #2 | 0 | - | 4.00 | 35,795 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,789 |
| UN Secretaries-General | 0 | - | 4.40 | 7,782 |
| First Names of Recent World Leaders | 0 | - | 4.25 | 24,951 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.20 | 48,578 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,589 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.48 | 15,829 |
| U.S. Cabinet Departments | 0 | - | 4.85 | 72,784 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,839 |
| Name the English Monarchs | 0 | - | 4.91 | 501,190 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,472 |
| Empires by Maps | 0 | - | 4.98 | 119,861 |
| World Leaders of the Cold War | 0 | - | 4.27 | 25,237 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,570 |
| Political Quotes | 0 | - | 4.17 | 19,863 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,314 |
| Metals of Antiquity | 0 | - | 4.94 | 93,269 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,556 |
| History: What Came First? #1 | 0 | - | 4.87 | 105,023 |
| Political Figures by Last Name #2 | 0 | - | 3.88 | 16,684 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,755 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,161 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,903 |
| Influential Women in History | 0 | - | 4.42 | 35,473 |
| Cradles of Civilization | 0 | - | 4.46 | 39,531 |
| Materials From History #1 | 0 | - | 4.56 | 51,456 |
| Historical Countries by Ruler | 0 | - | 4.48 | 48,510 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,049 |
| The Dictator Files: Fidel Castro | 0 | - | 4.19 | 12,304 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,845 |
| Countries of the Popes | 0 | - | 4.79 | 127,817 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 706,480 |
| Biggest Nations and Empires Ever | 0 | - | 4.52 | 145,702 |
| Famous Explorers | 0 | - | 4.58 | 36,112 |
| Famous Empires by Description | 0 | - | 4.73 | 118,303 |
| Answers by Time Period | 0 | - | 4.64 | 55,499 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,133 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,501 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.20 | 10,853 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,853 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,643 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,901 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,232 |
| NATO Countries | 0 | - | 4.98 | 279,018 |
| EU Countries Quiz | 0 | - | 4.99 | 272,620 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,914 |
| NFL Football Team Logos | 0 | - | 4.91 | 626,024 |
| NBA Team Logos | 0 | - | 4.81 | 686,626 |
| Former Flags | 0 | - | 4.97 | 107,416 |
| Years in History by Picture | 0 | - | 4.44 | 35,417 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,491 |
| Materials From History #2 | 0 | - | 4.59 | 31,447 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,858 |
| Cold War Decoder | 0 | - | 4.83 | 52,234 |
| 20th Century Dates Quiz | 0 | - | 4.56 | 39,381 |
| Events in History #2 | 0 | - | 4.49 | 71,627 |
| Events in History #4 | 0 | - | 4.44 | 44,248 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,977 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.21 | 48,947 |
| Assassinations in History | 0 | - | 4.21 | 66,146 |
| Famous Seconds | 0 | - | 4.22 | 46,538 |
| Ages and Eras | 0 | - | 4.39 | 67,639 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,465 |
| Titled People Quiz #1 | 0 | - | 4.11 | 45,755 |
| Titled People Quiz #3 | 0 | - | 4.34 | 43,139 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 75,949 |
| Female Historical Figures | 0 | - | 4.28 | 33,216 |
| Historical Blunders | 0 | - | 4.34 | 91,878 |
| Territorial Accessions | 0 | - | 4.36 | 34,753 |
| People Known as "The Great" | 0 | - | 4.46 | 24,626 |
| This Day in History - July | 0 | - | 4.49 | 36,433 |
| This Day in History - August | 0 | - | 4.42 | 43,331 |
| This Day in History - September | 0 | - | 4.55 | 57,392 |
| This Day in History - October | 0 | - | 4.49 | 37,604 |
| This Day in History - January | 0 | - | 4.50 | 46,669 |
| This Day in History - March | 0 | - | 4.45 | 43,628 |
| Ancient Civilizations | 0 | - | 4.64 | 37,899 |
| The Places They Went #1 | 0 | - | 4.74 | 33,501 |
| Famous Inventors | 0 | - | 4.43 | 43,518 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,787 |
| European History for Dummies | 0 | - | 4.83 | 89,720 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,727 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,550 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.09 | 1,012,971 |
| U.S. States by Governor | 0 | - | 4.43 | 18,036 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,661 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,641 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 55,224 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 906,236 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 416,187 |
| World Map without 12 Countries | 0 | - | 4.97 | 343,820 |
| Every Country Shape | 0 | - | 5.00 | 463,306 |
| NHL Ice Hockey Team Logos | 0 | - | 4.89 | 186,514 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,679 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,795 |
| The 2nd Millennium BC | 0 | - | 4.64 | 20,803 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,239 |
| History Analogies #1 | 0 | - | 4.53 | 89,905 |
| History Analogies #2 | 0 | - | 4.49 | 77,149 |
| Current Events by Year, 1990–2009 | 0 | - | 4.77 | 152,464 |
| Current Events by Year, 1970–1989 | 0 | - | 4.56 | 65,111 |
| Current Events by Year, 1930–1949 | 0 | - | 4.48 | 52,042 |
| Groups of Things - History #1 | 0 | - | 4.41 | 93,969 |
| History Analogies #3 | 0 | - | 4.61 | 80,589 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,376 |
| Which Came First? | 0 | - | 4.37 | 74,686 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,606 |
| Random History by Country | 0 | - | 4.53 | 34,803 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,797 |
| Animals in World History | 0 | - | 4.74 | 44,418 |
| Places - Real or Fictional? | 0 | - | 4.59 | 49,522 |
| History True or False #3 | 0 | - | 4.43 | 56,728 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,407 |
| A to Z: Legendary Creatures | 0 | - | 4.26 | 52,951 |
| WWII First Names | 0 | - | 4.44 | 41,736 |
| Cold War Trivia #1 | 0 | - | 4.42 | 57,195 |
| Events in History #3 | 0 | - | 4.40 | 71,627 |
| Events in History #1 | 0 | - | 4.34 | 157,600 |
| Events in Ancient History | 0 | - | 4.50 | 35,914 |
| People Who Died Young #1 | 0 | - | 4.24 | 63,635 |
| Deaths by Date and Cause #1 | 0 | - | 4.38 | 95,129 |
| Deaths by Date and Cause #2 | 0 | - | 4.15 | 67,682 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,951 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,289 |
| This Day in History - April | 0 | - | 4.40 | 44,443 |
| This Day in History - May | 0 | - | 4.33 | 48,339 |
| This Day in History - June | 0 | - | 4.32 | 33,487 |
| This Day in History - November | 0 | - | 4.24 | 33,587 |
| This Day in History - December | 0 | - | 4.32 | 40,517 |
| This Day in History - February | 0 | - | 4.38 | 39,759 |
| The 19th Century | 0 | - | 4.53 | 68,066 |
| The 18th Century | 0 | - | 4.52 | 53,250 |
| The 16th Century | 0 | - | 4.77 | 58,846 |
| The 9th and 10th Century | 0 | - | 4.54 | 37,633 |
| The 21st Century | 0 | - | 4.48 | 105,788 |
| Military History Vocabulary | 0 | - | 4.91 | 66,987 |
| Battle to Country | 0 | - | 4.91 | 53,090 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,888 |
| The Life of King David | 0 | - | 4.37 | 14,112 |
| History Multiple Choice #1 | 0 | - | 4.44 | 81,823 |
| Years in History #2 - Multiple Choice | 0 | - | 4.43 | 41,594 |
| History Multiple Choice #2 | 0 | - | 4.43 | 49,983 |
| History Multiple Choice #3 | 0 | - | 4.45 | 48,692 |
| History Multiple Choice #5 | 0 | - | 4.49 | 32,415 |
| Three Real and One Fake - World History | 0 | - | 4.44 | 38,326 |
| English Royal Consorts | 0 | - | 4.37 | 37,305 |
| British History A-Z #1 | 0 | - | 4.45 | 46,375 |
| Kings of France Quiz | 0 | - | 4.20 | 32,673 |
| Dark Ages History | 0 | - | 4.42 | 32,734 |
| 30 Historical People You Probably Don't Know | 0 | - | 4.36 | 60,951 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 336,958 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,108 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,318 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,714 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 295,490 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 225,168 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 163,811 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 172,739 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 137,859 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 36,017 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 104,212 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 111,246 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 121,905 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 108,093 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 80,460 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 57,998 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 85,527 |
| Cartoon Versions of Countries | 0 | - | 4.99 | 95,041 |
| Country Shapes Under the Sea | 0 | - | 5.00 | 77,545 |
| A Square of Merged Countries #1 | 0 | - | 4.88 | 59,358 |
| Country Shapes Slideshow | 0 | - | 4.84 | 39,408 |
| Country Shapes in my Burger | 0 | - | 4.95 | 54,525 |
| A Square of Merged Countries #2 | 0 | - | 4.97 | 41,357 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,989 |
| Flags to Capitals #1 | 0 | - | 4.96 | 58,278 |
| Flags to Capitals #2 | 0 | - | 4.95 | 44,263 |
| World Capitals in the Answer | 0 | - | 4.94 | 76,793 |
| Monarchies of Europe | 0 | - | 4.90 | 97,892 |
| Monarchies of Asia | 0 | - | 4.97 | 70,936 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,037 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,388 |
| Countries Mentioned in the Bible | 0 | - | 4.96 | 66,747 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,990 |
