| WWII Geography | 0 | - | 4.81 | 119,277 |
| WWII Figures by Picture | 0 | - | 4.85 | 50,432 |
| Battle to Country | 0 | - | 4.91 | 52,453 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 704,043 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,587 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 267,802 |
| Countries with NO Military | 0 | - | 4.97 | 61,090 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 54,707 |
| Words for Leaders | 0 | - | 4.77 | 254,934 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,170 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,079 |
| Territory Changes in World War I | 0 | - | 4.86 | 46,184 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,339 |
| Name the English Monarchs | 0 | - | 4.92 | 497,481 |
| "Second Best" History Edition | 0 | - | 4.93 | 61,640 |
| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,095 |
| WWII Movies by Plot | 0 | - | 4.21 | 26,959 |
| WWII Decoder | 0 | - | 4.41 | 53,008 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,149 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,349 |
| Empires by Maps | 0 | - | 4.98 | 118,220 |
| Famous Dictators #1 | 0 | - | 4.69 | 198,648 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,254 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,157 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,267 |
| WWII First Names | 0 | - | 4.45 | 41,539 |
| WWI... or WWII? | 0 | - | 4.85 | 140,500 |
| WWII for Dummies | 0 | - | 4.80 | 103,723 |
| Modern-Day Axis-Occupied Countries of WWII on a Map | 0 | - | 4.99 | 84,705 |
| Countries in World War I | 0 | - | 4.88 | 226,411 |
| The American Civil War | 0 | - | 4.62 | 52,103 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,044 |
| Ye Olde Professions | 0 | - | 4.67 | 155,645 |
| Body Part Words | 0 | - | 4.43 | 145,084 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,779 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,201 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,033 |
| Historical Rulers #2 | 0 | - | 4.26 | 47,175 |
| Historical Rulers #1 | 0 | - | 4.35 | 118,432 |
| World Leaders Quiz #1 | 0 | - | 4.11 | 109,605 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,638 |
| Mythical Creatures #2 | 0 | - | 4.04 | 111,015 |
| Things Named for Inventors | 0 | - | 4.40 | 72,054 |
| Countries with U.S. Troops | 0 | - | 4.38 | 131,586 |
| Countries With the Largest Air Forces | 0 | - | 4.47 | 51,216 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,694 |
| Metals of Antiquity | 0 | - | 4.94 | 92,822 |
| Popular Royal Names | 0 | - | 4.27 | 124,440 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,103 |
| History: What Came First? #1 | 0 | - | 4.87 | 104,082 |
| History - Did They Have It? | 0 | - | 4.84 | 61,043 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,050 |
| First Names of Painters | 0 | - | 4.43 | 59,580 |
| Countries in World War II | 0 | - | 4.53 | 903,645 |
| Notable People of WWII | 0 | - | 4.53 | 85,290 |
| WWII Trivia #2 | 0 | - | 4.52 | 103,374 |
| World War I Quiz | 0 | - | 4.78 | 100,175 |
| WWI A-Z | 0 | - | 4.50 | 37,998 |
| U.S. Five-Star Generals and Admirals | 0 | - | 4.33 | 8,299 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,616 |
| Elemental Words | 0 | - | 4.96 | 51,935 |
| Name a Valid Word #1 | 0 | - | 4.88 | 118,933 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 53,537 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,403 |
| Influential Women in History | 0 | - | 4.42 | 34,907 |
| Cradles of Civilization | 0 | - | 4.46 | 38,967 |
| History of The Netherlands | 0 | - | 4.46 | 17,299 |
| Materials From History #1 | 0 | - | 4.56 | 50,525 |
| Historical Countries by Ruler | 0 | - | 4.48 | 47,992 |
| World Leaders Quiz #2 | 0 | - | 4.00 | 35,631 |
| UN Secretaries-General | 0 | - | 4.40 | 7,756 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,533 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,077 |
| Famous Explorers | 0 | - | 4.58 | 35,915 |
| Famous Empires by Description | 0 | - | 4.70 | 117,472 |
| Answers by Time Period | 0 | - | 4.63 | 55,231 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,916 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.95 | 40,655 |
| All Modern-Day Countries Ever Controlled by Arab People with a Map | 0 | - | 4.98 | 54,822 |
| All Modern-Day Countries Ever Controlled by the British | 0 | - | 4.81 | 49,319 |
| Book Titles with Shared First Words | 0 | - | 4.52 | 15,019 |
| Country Name Etymologies #1 | 0 | - | 4.97 | 158,118 |
| Country Name Etymologies #2 | 0 | - | 4.96 | 85,932 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 146,613 |
| Countries by Number of Books Published | 0 | - | 4.95 | 71,849 |
| NATO Countries | 0 | - | 4.98 | 275,251 |
| EU Countries Quiz | 0 | - | 4.99 | 269,542 |
| Top Five Countries by Religion | 0 | - | 4.93 | 168,831 |
| 7 Deadly Sins | 0 | - | 4.88 | 394,380 |
| Books of the Protestant Bible | 0 | - | 4.89 | 206,926 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,096 |
| Former Flags | 0 | - | 4.97 | 106,548 |
| Years in History by Picture | 0 | - | 4.44 | 35,061 |
| Ancient Greece A-Z | 0 | - | 4.60 | 22,972 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,152 |
| Materials From History #2 | 0 | - | 4.59 | 30,895 |
| Historic Orient Express Routes Map | 0 | - | 5.00 | 52,907 |
| WWII Trivia #1 | 0 | - | 4.36 | 176,514 |
| Important Cities in WWII | 0 | - | 4.42 | 92,832 |
| World War II Multiple Choice | 0 | - | 4.38 | 103,241 |
| WWII True or False? | 0 | - | 4.56 | 56,986 |
| Cold War Decoder | 0 | - | 4.83 | 51,885 |
| 20th Century Dates Quiz | 0 | - | 4.56 | 39,301 |
| Events in History #2 | 0 | - | 4.49 | 71,386 |
| Events in History #4 | 0 | - | 4.44 | 44,073 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,286 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.21 | 48,786 |
| Assassinations in History | 0 | - | 4.20 | 65,923 |
| Famous Seconds | 0 | - | 4.22 | 46,368 |
| Ages and Eras Quiz | 0 | - | 4.38 | 67,420 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,377 |
| Titled People Quiz #1 | 0 | - | 4.10 | 45,585 |
| Titled People Quiz #3 | 0 | - | 4.34 | 43,006 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 75,804 |
| Female Historical Figures | 0 | - | 4.31 | 33,077 |
| Historical Blunders | 0 | - | 4.33 | 91,637 |
| Territorial Accessions | 0 | - | 4.38 | 34,614 |
| People Known as "The Great" | 0 | - | 4.46 | 24,492 |
| This Day in History - July | 0 | - | 4.49 | 36,357 |
| 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 | 37,728 |
| The Places They Went #1 | 0 | - | 4.74 | 33,433 |
| Famous Inventors | 0 | - | 4.43 | 43,443 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,427 |
| All Modern-Day Countries Ever Controlled by the Seljuks | 0 | - | 4.92 | 28,255 |
| European History for Dummies | 0 | - | 4.82 | 89,240 |
| British History A-Z #1 | 0 | - | 4.45 | 45,768 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,260 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.09 | 1,010,063 |
| Book Titles by Synonyms #2 | 0 | - | 4.37 | 39,241 |
| Coldest World Capitals | 0 | - | 4.95 | 132,993 |
| World Currency Quiz | 0 | - | 4.92 | 297,927 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,555 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 121,898 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,658 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,043 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,533 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,293 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,823 |
| Buddhist Countries | 0 | - | 4.96 | 142,847 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,089,984 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,650 |
| 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 | 89,750 |
| History Analogies #2 | 0 | - | 4.49 | 76,972 |
| 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 | 80,407 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,104 |
| Which Came First? | 0 | - | 4.37 | 74,368 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,489 |
| Random History by Country | 0 | - | 4.53 | 34,636 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,506 |
| Animals in World History | 0 | - | 4.74 | 44,197 |
| People - Real or Fictional? | 0 | - | 4.56 | 58,425 |
| Places - Real or Fictional? | 0 | - | 4.59 | 49,333 |
| History True or False #3 | 0 | - | 4.43 | 55,881 |
| World Leaders of the Cold War | 0 | - | 4.27 | 25,103 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.18 | 47,047 |
| A to Z: Legendary Creatures | 0 | - | 4.26 | 52,711 |
| Cold War Trivia #1 | 0 | - | 4.41 | 56,908 |
| Events in History #3 | 0 | - | 4.40 | 71,416 |
| Events in History #1 | 0 | - | 4.34 | 157,205 |
| Events in Ancient History | 0 | - | 4.50 | 35,676 |
| People Who Died Young #1 | 0 | - | 4.24 | 63,517 |
| Deaths by Date and Cause #1 | 0 | - | 4.37 | 94,853 |
| Deaths by Date and Cause #2 | 0 | - | 4.15 | 67,446 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,496 |
| Countries That Were Invaded | 0 | - | 4.54 | 96,873 |
| Political Quotes | 0 | - | 4.17 | 19,799 |
| 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 | 39,691 |
| The 19th Century | 0 | - | 4.53 | 67,859 |
| The 18th Century | 0 | - | 4.52 | 53,102 |
| The 16th Century | 0 | - | 4.77 | 58,719 |
| The 9th and 10th Century | 0 | - | 4.54 | 37,523 |
| The 21st Century | 0 | - | 4.48 | 105,233 |
| Military History A-Z | 0 | - | 4.20 | 21,029 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,646 |
| The Life of King David | 0 | - | 4.37 | 14,056 |
| History Multiple Choice #1 | 0 | - | 4.46 | 81,481 |
| Years in History #2 - Multiple Choice | 0 | - | 4.43 | 41,385 |
| 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 | 38,172 |
| English Royal Consorts | 0 | - | 4.37 | 37,142 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,591 |
| Kings of France Quiz | 0 | - | 4.20 | 32,540 |
| Dark Ages History | 0 | - | 4.42 | 32,669 |
