| Prime Ministers of the UK | 0 | - | 4.96 | 434,474 |
| World Leaders by Picture | 0 | - | 4.36 | 263,324 |
| Dictators by Picture | 0 | - | 4.18 | 48,852 |
| Political Figures by Last Name #1 | 0 | - | 4.55 | 67,401 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,027 |
| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,114 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,670 |
| Famous Dictators #1 | 0 | - | 4.69 | 198,729 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,214 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,048 |
| Historical Rulers #2 | 0 | - | 4.26 | 47,199 |
| Historical Rulers #1 | 0 | - | 4.35 | 118,465 |
| Words for Leaders | 0 | - | 4.77 | 255,071 |
| World Leaders Quiz #1 | 0 | - | 4.11 | 109,626 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,080 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.48 | 15,752 |
| Spouses of World Leaders | 0 | - | 4.18 | 12,283 |
| World Leaders Quiz #2 | 0 | - | 4.00 | 35,647 |
| UN Secretaries-General | 0 | - | 4.40 | 7,759 |
| First Names of Recent World Leaders | 0 | - | 4.25 | 24,840 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,541 |
| "Second Best" History Edition | 0 | - | 4.94 | 61,725 |
| Paramount Leaders of China | 0 | - | 4.36 | 10,996 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,572 |
| Country Picture Puzzle Game #1 | 0 | - | 4.86 | 85,783 |
| Countries in a JetPunk Fish of the World Map | 0 | - | 4.99 | 59,787 |
| Countries in a Blue JetPunk Fish of the World Map | 0 | - | 4.92 | 71,363 |
| Divided Country Shape Puzzle #1 | 0 | - | 4.86 | 52,863 |
| World Leaders of the Cold War | 0 | - | 4.27 | 25,117 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,298 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,627 |
| Flags of the Countries that Start with C | 0 | - | 4.89 | 129,256 |
| Flags of the Countries that Start with I | 0 | - | 4.94 | 152,913 |
| Flags of the Countries that Start with B | 0 | - | 4.96 | 41,710 |
| Flags of the Countries that Start with A | 0 | - | 4.94 | 126,585 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,484 |
| Empires by Maps | 0 | - | 4.98 | 118,376 |
| Political Figures by Last Name #2 | 0 | - | 3.88 | 16,588 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,649 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 94,408 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.18 | 47,386 |
| The Dictator Files: Fidel Castro | 0 | - | 4.19 | 12,255 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,104 |
| Countries of the Popes | 0 | - | 4.79 | 127,171 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,200 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,073 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,604 |
| Metals of Antiquity | 0 | - | 4.94 | 92,883 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,131 |
| History: What Came First? #1 | 0 | - | 4.87 | 104,141 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,280 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 704,231 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,641 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,073 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,460 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.20 | 10,806 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,432 |
| Influential Women in History | 0 | - | 4.42 | 34,938 |
| Cradles of Civilization | 0 | - | 4.46 | 38,998 |
| Materials From History #1 | 0 | - | 4.56 | 50,557 |
| Historical Countries by Ruler | 0 | - | 4.48 | 48,039 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,815 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,305 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,128 |
| Famous Explorers | 0 | - | 4.58 | 35,932 |
| Famous Empires by Description | 0 | - | 4.70 | 117,508 |
| Answers by Time Period | 0 | - | 4.63 | 55,256 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,932 |
| NATO Countries | 0 | - | 4.98 | 275,544 |
| EU Countries Quiz | 0 | - | 4.99 | 269,772 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,732 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,373 |
| Country Picture Puzzle Game #2 | 0 | - | 4.54 | 55,027 |
| Country Picture Puzzle Game #3 | 0 | - | 4.44 | 41,918 |
| Divided Country Shape Puzzle #2 | 0 | - | 4.57 | 33,247 |
| NFL Football Team Logos | 0 | - | 4.91 | 620,942 |
| Former Flags | 0 | - | 4.97 | 106,640 |
| Years in History by Picture | 0 | - | 4.44 | 35,088 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 77,998 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,169 |
| Materials From History #2 | 0 | - | 4.59 | 30,903 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,510 |
| Pope Facts | 0 | - | 4.39 | 31,032 |
| Flags of WW1 | 0 | - | 4.60 | 37,921 |
| Cold War Decoder | 0 | - | 4.83 | 51,907 |
| 20th Century Dates Quiz | 0 | - | 4.56 | 39,311 |
| Events in History #2 | 0 | - | 4.49 | 71,410 |
| Events in History #4 | 0 | - | 4.44 | 44,088 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,365 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.21 | 48,803 |
| Assassinations in History | 0 | - | 4.20 | 65,941 |
| Famous Seconds | 0 | - | 4.22 | 46,382 |
| Ages and Eras | 0 | - | 4.38 | 67,440 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,384 |
| Titled People Quiz #1 | 0 | - | 4.10 | 45,601 |
| Titled People Quiz #3 | 0 | - | 4.34 | 43,025 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 75,815 |
| Female Historical Figures | 0 | - | 4.31 | 33,088 |
| Historical Blunders | 0 | - | 4.33 | 91,658 |
| Territorial Accessions | 0 | - | 4.38 | 34,624 |
| People Known as "The Great" | 0 | - | 4.46 | 24,509 |
| Political Quotes | 0 | - | 4.17 | 19,800 |
| This Day in History - July | 0 | - | 4.49 | 36,367 |
| This Day in History - August | 0 | - | 4.42 | 43,243 |
| This Day in History - September | 0 | - | 4.55 | 57,252 |
| This Day in History - October | 0 | - | 4.49 | 37,551 |
| This Day in History - January | 0 | - | 4.53 | 46,566 |
| This Day in History - March | 0 | - | 4.45 | 43,539 |
| Ancient Civilizations | 0 | - | 4.63 | 37,743 |
| Military History Vocabulary | 0 | - | 4.91 | 66,626 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,665 |
| The Places They Went #1 | 0 | - | 4.74 | 33,442 |
| Famous Inventors | 0 | - | 4.43 | 43,449 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,456 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.38 | 29,027 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.09 | 1,010,820 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,286 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,534 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,018 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,711 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 294,251 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,160 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 161,793 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,277 |
| World Map without 12 Countries #2 | 0 | - | 4.97 | 171,252 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 136,955 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 34,327 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 103,297 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 110,618 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 121,224 |
| Every Country Shape | 0 | - | 5.00 | 458,651 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 107,267 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 80,000 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 57,528 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 85,011 |
| Cartoon Versions of Countries | 0 | - | 4.99 | 94,584 |
| Country Shapes Under the Sea | 0 | - | 5.00 | 77,145 |
| A Square of Merged Countries #1 | 0 | - | 4.88 | 58,939 |
| Country Shapes Slideshow | 0 | - | 4.84 | 39,113 |
| Country Shapes in my Burger | 0 | - | 4.95 | 54,092 |
| A Square of Merged Countries #2 | 0 | - | 4.97 | 40,994 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,348 |
| Flags to Capitals #1 | 0 | - | 4.96 | 57,857 |
| Flags to Capitals #2 | 0 | - | 4.95 | 43,900 |
| NHL Ice Hockey Team Logos | 0 | - | 4.89 | 183,754 |
| Countries Mentioned in the Bible | 0 | - | 4.96 | 66,026 |
| The 2nd Millennium BC | 0 | - | 4.64 | 20,691 |
| Body Parts in History and Culture | 0 | - | 4.42 | 35,087 |
| History Analogies #1 | 0 | - | 4.53 | 89,771 |
| History Analogies #2 | 0 | - | 4.49 | 76,988 |
| Current Events by Year, 1990–2009 | 0 | - | 4.77 | 152,109 |
| Current Events by Year, 1970–1989 | 0 | - | 4.56 | 64,943 |
| Current Events by Year, 1930–1949 | 0 | - | 4.48 | 51,922 |
| History Analogies #3 | 0 | - | 4.61 | 80,421 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,128 |
| Which Came First? | 0 | - | 4.37 | 74,389 |
| Random History by Country | 0 | - | 4.53 | 34,651 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,530 |
| Animals in World History | 0 | - | 4.74 | 44,207 |
| Places - Real or Fictional? | 0 | - | 4.59 | 49,346 |
| History True or False #3 | 0 | - | 4.43 | 55,901 |
| A to Z: Legendary Creatures | 0 | - | 4.26 | 52,728 |
| Arthurian Legend | 0 | - | 4.33 | 25,049 |
| WWII Geography | 0 | - | 4.81 | 119,314 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,099 |
| WWII Figures by Picture | 0 | - | 4.85 | 50,496 |
| Territory Changes in World War I | 0 | - | 4.86 | 46,211 |
| Cold War Trivia #1 | 0 | - | 4.41 | 56,934 |
| Events in History #3 | 0 | - | 4.40 | 71,437 |
| Events in History #1 | 0 | - | 4.34 | 157,252 |
| Events in Ancient History | 0 | - | 4.50 | 35,697 |
| People Who Died Young #1 | 0 | - | 4.24 | 63,535 |
| Deaths by Date and Cause #1 | 0 | - | 4.37 | 94,882 |
| Deaths by Date and Cause #2 | 0 | - | 4.15 | 67,468 |
| U.S. Baby Boy Names by Decade | 0 | - | 4.55 | 486,360 |
| U.S. Baby Girl Names by Decade | 0 | - | 4.42 | 709,456 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,528 |
| Countries That Were Invaded | 0 | - | 4.54 | 96,897 |
| This Day in History - April | 0 | - | 4.40 | 44,386 |
| This Day in History - May | 0 | - | 4.33 | 48,243 |
| This Day in History - June | 0 | - | 4.36 | 33,430 |
| This Day in History - November | 0 | - | 4.24 | 33,530 |
| This Day in History - December | 0 | - | 4.32 | 40,447 |
| This Day in History - February | 0 | - | 4.38 | 39,697 |
| The 19th Century | 0 | - | 4.53 | 67,872 |
| The 18th Century | 0 | - | 4.52 | 53,112 |
| The 16th Century | 0 | - | 4.77 | 58,731 |
| The 9th and 10th Century | 0 | - | 4.54 | 37,533 |
| The 21st Century | 0 | - | 4.48 | 105,269 |
| History Multiple Choice #1 | 0 | - | 4.46 | 81,503 |
| Years in History #2 - Multiple Choice | 0 | - | 4.43 | 41,400 |
| History Multiple Choice #2 | 0 | - | 4.43 | 49,791 |
| History Multiple Choice #3 | 0 | - | 4.45 | 48,529 |
| History Multiple Choice #5 | 0 | - | 4.49 | 32,257 |
| Three Real and One Fake - World History | 0 | - | 4.44 | 38,183 |
| Name the English Monarchs | 0 | - | 4.92 | 497,750 |
| Dark Ages History | 0 | - | 4.42 | 32,671 |
| 30 Historical People You Probably Don't Know | 0 | - | 4.36 | 60,800 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 335,432 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,507 |
