| WWII Geography | 0 | - | 4.81 | 119,249 |
| WWII Figures by Picture | 0 | - | 4.85 | 50,395 |
| Battle to Country | 0 | - | 4.91 | 52,422 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 703,926 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,428 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 267,617 |
| Countries with NO Military | 0 | - | 4.97 | 61,046 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 54,680 |
| Words for Leaders | 0 | - | 4.77 | 254,850 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,128 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,065 |
| Territory Changes in World War I | 0 | - | 4.86 | 46,171 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,332 |
| Name the English Monarchs | 0 | - | 4.92 | 497,310 |
| "Second Best" History Edition | 0 | - | 4.93 | 61,605 |
| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,084 |
| WWII Movies by Plot | 0 | - | 4.21 | 26,958 |
| WWII Decoder | 0 | - | 4.41 | 52,997 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,110 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,292 |
| Empires by Maps | 0 | - | 4.98 | 118,130 |
| Famous Dictators #1 | 0 | - | 4.69 | 198,608 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,233 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,139 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,218 |
| WWII First Names | 0 | - | 4.45 | 41,528 |
| WWI... or WWII? | 0 | - | 4.85 | 140,442 |
| WWII for Dummies | 0 | - | 4.80 | 103,682 |
| Modern-Day Axis-Occupied Countries of WWII on a Map | 0 | - | 4.99 | 84,672 |
| Countries in World War I | 0 | - | 4.88 | 226,021 |
| The American Civil War | 0 | - | 4.62 | 52,098 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,032 |
| Ye Olde Professions | 0 | - | 4.67 | 155,616 |
| Body Part Words | 0 | - | 4.43 | 145,071 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,776 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,198 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,025 |
| Historical Rulers #2 | 0 | - | 4.26 | 47,162 |
| Historical Rulers #1 | 0 | - | 4.35 | 118,419 |
| World Leaders Quiz #1 | 0 | - | 4.11 | 109,594 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,633 |
| Mythical Creatures #2 | 0 | - | 4.04 | 110,987 |
| Things Named for Inventors | 0 | - | 4.40 | 72,036 |
| Countries with U.S. Troops | 0 | - | 4.38 | 131,567 |
| Countries With the Largest Air Forces | 0 | - | 4.47 | 51,205 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,672 |
| Metals of Antiquity | 0 | - | 4.94 | 92,810 |
| Popular Royal Names | 0 | - | 4.27 | 124,424 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,079 |
| History: What Came First? #1 | 0 | - | 4.87 | 104,053 |
| History - Did They Have It? | 0 | - | 4.84 | 61,021 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,033 |
| First Names of Painters | 0 | - | 4.43 | 59,567 |
| Countries in World War II | 0 | - | 4.53 | 903,283 |
| Notable People of WWII | 0 | - | 4.53 | 85,268 |
| WWII Trivia #2 | 0 | - | 4.52 | 103,361 |
| World War I Quiz | 0 | - | 4.78 | 100,148 |
| WWI A-Z | 0 | - | 4.50 | 37,990 |
| U.S. Five-Star Generals and Admirals | 0 | - | 4.33 | 8,298 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,602 |
| Elemental Words | 0 | - | 4.96 | 51,926 |
| Name a Valid Word #1 | 0 | - | 4.88 | 118,910 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 53,527 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,389 |
| Influential Women in History | 0 | - | 4.42 | 34,891 |
| Cradles of Civilization | 0 | - | 4.46 | 38,947 |
| History of The Netherlands | 0 | - | 4.46 | 17,296 |
| Materials From History #1 | 0 | - | 4.56 | 50,513 |
| Historical Countries by Ruler | 0 | - | 4.48 | 47,976 |
| World Leaders Quiz #2 | 0 | - | 4.00 | 35,625 |
| UN Secretaries-General | 0 | - | 4.40 | 7,754 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,530 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,061 |
| Famous Explorers | 0 | - | 4.58 | 35,909 |
| Famous Empires by Description | 0 | - | 4.70 | 117,458 |
| Answers by Time Period | 0 | - | 4.63 | 55,220 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,905 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.95 | 40,645 |
| All Modern-Day Countries Ever Controlled by Arab People with a Map | 0 | - | 4.98 | 54,797 |
| All Modern-Day Countries Ever Controlled by the British | 0 | - | 4.81 | 49,297 |
| Book Titles with Shared First Words | 0 | - | 4.52 | 15,013 |
| Country Name Etymologies #1 | 0 | - | 4.97 | 158,098 |
| Country Name Etymologies #2 | 0 | - | 4.96 | 85,907 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 146,551 |
| Countries by Number of Books Published | 0 | - | 4.95 | 71,823 |
| NATO Countries | 0 | - | 4.98 | 275,051 |
| EU Countries Quiz | 0 | - | 4.99 | 269,385 |
| Top Five Countries by Religion | 0 | - | 4.93 | 168,744 |
| 7 Deadly Sins | 0 | - | 4.88 | 394,221 |
| Books of the Protestant Bible | 0 | - | 4.89 | 206,788 |
| Majority Muslim Countries | 0 | - | 4.98 | 367,962 |
| Former Flags | 0 | - | 4.97 | 106,515 |
| Years in History by Picture | 0 | - | 4.44 | 35,041 |
| Ancient Greece A-Z | 0 | - | 4.60 | 22,961 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,140 |
| Materials From History #2 | 0 | - | 4.59 | 30,892 |
| Historic Orient Express Routes Map | 0 | - | 5.00 | 52,889 |
| WWII Trivia #1 | 0 | - | 4.36 | 176,477 |
| Important Cities in WWII | 0 | - | 4.42 | 92,805 |
| World War II Multiple Choice | 0 | - | 4.38 | 103,228 |
| WWII True or False? | 0 | - | 4.56 | 56,961 |
| Cold War Decoder | 0 | - | 4.83 | 51,872 |
| 20th Century Dates Quiz | 0 | - | 4.56 | 39,297 |
| Events in History #2 | 0 | - | 4.49 | 71,375 |
| Events in History #4 | 0 | - | 4.44 | 44,065 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,258 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.21 | 48,783 |
| Assassinations in History | 0 | - | 4.20 | 65,916 |
| Famous Seconds | 0 | - | 4.22 | 46,363 |
| Ages and Eras Quiz | 0 | - | 4.38 | 67,413 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,375 |
| Titled People Quiz #1 | 0 | - | 4.10 | 45,582 |
| Titled People Quiz #3 | 0 | - | 4.34 | 43,003 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 75,799 |
| Female Historical Figures | 0 | - | 4.31 | 33,068 |
| Historical Blunders | 0 | - | 4.33 | 91,633 |
| Territorial Accessions | 0 | - | 4.38 | 34,609 |
| People Known as "The Great" | 0 | - | 4.46 | 24,489 |
| This Day in History - July | 0 | - | 4.49 | 36,355 |
| This Day in History - August | 0 | - | 4.41 | 43,232 |
| This Day in History - September | 0 | - | 4.55 | 57,231 |
| This Day in History - October | 0 | - | 4.49 | 37,541 |
| This Day in History - January | 0 | - | 4.53 | 46,549 |
| This Day in History - March | 0 | - | 4.45 | 43,524 |
| Ancient Civilizations | 0 | - | 4.63 | 37,720 |
| The Places They Went #1 | 0 | - | 4.74 | 33,432 |
| Famous Inventors | 0 | - | 4.43 | 43,439 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,404 |
| All Modern-Day Countries Ever Controlled by the Seljuks | 0 | - | 4.92 | 28,245 |
| European History for Dummies | 0 | - | 4.82 | 89,216 |
| British History A-Z #1 | 0 | - | 4.45 | 45,731 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,249 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.09 | 1,009,942 |
| Book Titles by Synonyms #2 | 0 | - | 4.37 | 39,234 |
| Coldest World Capitals | 0 | - | 4.95 | 132,979 |
| World Currency Quiz | 0 | - | 4.92 | 297,728 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,391 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 121,805 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,592 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 73,983 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,481 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,231 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,788 |
| Buddhist Countries | 0 | - | 4.96 | 142,816 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,089,721 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,510 |
| The 2nd Millennium BC | 0 | - | 4.64 | 20,672 |
| Body Parts in History and Culture | 0 | - | 4.42 | 34,993 |
| History Analogies #1 | 0 | - | 4.53 | 89,741 |
| History Analogies #2 | 0 | - | 4.49 | 76,959 |
| Current Events by Year, 1990–2009 | 0 | - | 4.77 | 152,059 |
| Current Events by Year, 1970–1989 | 0 | - | 4.56 | 64,926 |
| Current Events by Year, 1930–1949 | 0 | - | 4.48 | 51,904 |
| History Analogies #3 | 0 | - | 4.61 | 80,396 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,088 |
| Which Came First? | 0 | - | 4.37 | 74,355 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,480 |
| Random History by Country | 0 | - | 4.53 | 34,634 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,491 |
| Animals in World History | 0 | - | 4.74 | 44,183 |
| People - Real or Fictional? | 0 | - | 4.56 | 58,398 |
| Places - Real or Fictional? | 0 | - | 4.59 | 49,325 |
| History True or False #3 | 0 | - | 4.43 | 55,867 |
| World Leaders of the Cold War | 0 | - | 4.27 | 25,096 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.18 | 46,806 |
| A to Z: Legendary Creatures | 0 | - | 4.26 | 52,699 |
| Cold War Trivia #1 | 0 | - | 4.41 | 56,896 |
| Events in History #3 | 0 | - | 4.40 | 71,405 |
| Events in History #1 | 0 | - | 4.34 | 157,181 |
| Events in Ancient History | 0 | - | 4.50 | 35,667 |
| People Who Died Young #1 | 0 | - | 4.24 | 63,516 |
| Deaths by Date and Cause #1 | 0 | - | 4.37 | 94,832 |
| Deaths by Date and Cause #2 | 0 | - | 4.15 | 67,434 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,475 |
| Countries That Were Invaded | 0 | - | 4.54 | 96,861 |
| Political Quotes | 0 | - | 4.17 | 19,797 |
| This Day in History - April | 0 | - | 4.39 | 44,375 |
| This Day in History - May | 0 | - | 4.32 | 48,235 |
| This Day in History - June | 0 | - | 4.35 | 33,421 |
| This Day in History - November | 0 | - | 4.24 | 33,521 |
| This Day in History - December | 0 | - | 4.31 | 40,439 |
| This Day in History - February | 0 | - | 4.38 | 39,686 |
| The 19th Century | 0 | - | 4.53 | 67,846 |
| The 18th Century | 0 | - | 4.52 | 53,097 |
| The 16th Century | 0 | - | 4.77 | 58,716 |
| The 9th and 10th Century | 0 | - | 4.54 | 37,512 |
| The 21st Century | 0 | - | 4.48 | 105,204 |
| Military History A-Z | 0 | - | 4.20 | 21,022 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,634 |
| The Life of King David | 0 | - | 4.37 | 14,054 |
| History Multiple Choice #1 | 0 | - | 4.46 | 81,468 |
| Years in History #2 - Multiple Choice | 0 | - | 4.43 | 41,380 |
| History Multiple Choice #2 | 0 | - | 4.43 | 49,770 |
| History Multiple Choice #3 | 0 | - | 4.45 | 48,509 |
| History Multiple Choice #5 | 0 | - | 4.49 | 32,243 |
| Three Real and One Fake - World History | 0 | - | 4.44 | 38,164 |
| English Royal Consorts | 0 | - | 4.37 | 37,138 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,580 |
| Kings of France Quiz | 0 | - | 4.20 | 32,534 |
| Dark Ages History | 0 | - | 4.42 | 32,667 |
