| WWII Geography | 0 | - | 4.81 | 121,582 |
| WWII Figures by Picture | 0 | - | 4.89 | 66,563 |
| Countries by Number of Books Published | 0 | - | 4.95 | 73,263 |
| All World Leaders 2026 | 0 | - | 4.95 | 21,226 |
| Authors by Picture | 0 | - | 4.48 | 25,663 |
| Military History Vocabulary | 0 | - | 4.92 | 67,813 |
| "Second Best" History Edition | 0 | - | 4.94 | 64,482 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,696 |
| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,823 |
| Name the English Monarchs | 0 | - | 4.91 | 507,802 |
| WWII Decoder | 0 | - | 4.41 | 53,936 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 56,009 |
| Former Countries by Territory Map | 0 | - | 4.96 | 104,336 |
| Empires by Maps | 0 | - | 4.98 | 122,753 |
| World Leaders of the Cold War | 0 | - | 4.26 | 25,495 |
| Famous Dictators #1 | 0 | - | 4.69 | 200,849 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.78 | 78,427 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,891 |
| WWII for Dummies | 0 | - | 4.78 | 105,943 |
| Countries in World War I | 0 | - | 4.88 | 229,546 |
| The 7 Wonders of the Ancient World | 0 | - | 4.86 | 82,691 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,506 |
| Metals of Antiquity | 0 | - | 4.95 | 94,073 |
| Historical Rulers #2 | 0 | - | 4.24 | 47,832 |
| Historical Rulers #1 | 0 | - | 4.34 | 119,630 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 47,259 |
| History: What Came First? #1 | 0 | - | 4.87 | 106,215 |
| Words for Leaders | 0 | - | 4.77 | 259,386 |
| World Leaders Quiz #1 | 0 | - | 4.12 | 110,403 |
| World Leaders Quiz #2 | 0 | - | 4.01 | 36,119 |
| World Leaders of the World Wars | 0 | - | 4.36 | 38,093 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 54,378 |
| Modern-Day Axis-Occupied Countries of WWII on a Map | 0 | - | 4.99 | 86,866 |
| Years in History #1 - Multiple Choice | 0 | - | 4.82 | 70,748 |
| Influential Women in History | 0 | - | 4.43 | 36,616 |
| Cradles of Civilization | 0 | - | 4.46 | 40,579 |
| Popular Royal Names | 0 | - | 4.27 | 125,499 |
| Materials From History #1 | 0 | - | 4.56 | 52,156 |
| Materials From History #2 | 0 | - | 4.59 | 31,648 |
| Historical Countries by Ruler | 0 | - | 4.48 | 49,379 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,905 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 711,038 |
| First Names of Painters | 0 | - | 4.43 | 60,135 |
| WWII Movies by Plot | 0 | - | 4.22 | 27,198 |
| Communist Countries in History | 0 | - | 4.63 | 499,029 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 146,798 |
| Famous Explorers | 0 | - | 4.58 | 36,421 |
| Famous Empires by Description | 0 | - | 4.74 | 119,103 |
| Answers by Time Period | 0 | - | 4.64 | 55,959 |
| Coups d'Etat - Name the Country | 0 | - | 4.44 | 42,538 |
| Books with Animals in the Title #1 | 0 | - | 4.41 | 74,801 |
| Top 10 Oldest African Countries | 0 | - | 4.87 | 28,338 |
| History of The Netherlands | 0 | - | 4.46 | 17,583 |
| UN Secretaries-General | 0 | - | 4.40 | 7,859 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,704 |
| Countries in World War II | 0 | - | 4.55 | 920,933 |
| Countries Invaded by the USSR | 0 | - | 4.30 | 94,545 |
| Name a Valid Year in History | 0 | - | 4.93 | 68,222 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.94 | 41,344 |
| All Modern-Day Countries Ever Controlled by Arab People with a Map | 0 | - | 4.98 | 55,829 |
| People Portrayed by Andy Warhol | 0 | - | 4.35 | 38,325 |
| 2010s Obituaries | 0 | - | 4.46 | 26,364 |
| Books by Country Quiz | 0 | - | 4.30 | 32,333 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 292,241 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 278,438 |
| Countries with NO Military | 0 | - | 4.97 | 63,710 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 150,179 |
| NATO Countries | 0 | - | 4.98 | 284,364 |
| EU Countries Quiz | 0 | - | 4.99 | 279,294 |
| Top Five Countries by Religion | 0 | - | 4.93 | 174,019 |
| 7 Deadly Sins | 0 | - | 4.88 | 405,183 |
| Books of the Protestant Bible | 0 | - | 4.85 | 212,507 |
| Majority Muslim Countries | 0 | - | 4.98 | 378,799 |
| Former Flags | 0 | - | 4.97 | 108,917 |
| Years in History by Picture | 0 | - | 4.45 | 35,978 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,920 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,546 |
| Former Capitals | 0 | - | 4.88 | 71,754 |
| Important Cities in WWII | 0 | - | 4.42 | 94,323 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,516 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,967 |
| Cold War Decoder | 0 | - | 4.83 | 52,735 |
| Events in History #2 | 0 | - | 4.49 | 72,059 |
| Events in History #3 | 0 | - | 4.41 | 71,977 |
| Events in History #4 | 0 | - | 4.44 | 44,543 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.21 | 49,203 |
| Assassinations in History | 0 | - | 4.21 | 66,487 |
| Famous Founders in the U.S. | 0 | - | 4.03 | 34,855 |
| Famous Seconds | 0 | - | 4.22 | 46,902 |
| Ages and Eras | 0 | - | 4.39 | 67,990 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,590 |
| Titled People Quiz #1 | 0 | - | 4.11 | 45,957 |
| Titled People Quiz #3 | 0 | - | 4.34 | 43,339 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 76,190 |
| Female Historical Figures | 0 | - | 4.28 | 33,419 |
| Historical Blunders | 0 | - | 4.34 | 92,774 |
| Territorial Accessions | 0 | - | 4.34 | 34,969 |
| People Known as "The Great" | 0 | - | 4.46 | 24,821 |
| This Day in History - July | 0 | - | 4.49 | 36,534 |
| This Day in History - August | 0 | - | 4.42 | 43,459 |
| This Day in History - September | 0 | - | 4.55 | 57,610 |
| This Day in History - October | 0 | - | 4.49 | 37,709 |
| This Day in History - January | 0 | - | 4.48 | 46,828 |
| This Day in History - March | 0 | - | 4.45 | 43,774 |
| Ancient Civilizations | 0 | - | 4.64 | 38,183 |
| The Places They Went #1 | 0 | - | 4.74 | 33,591 |
| Famous Inventors | 0 | - | 4.44 | 43,623 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 25,379 |
| European History for Dummies | 0 | - | 4.83 | 90,526 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 32,016 |
| Houses of British Monarchs | 0 | - | 4.54 | 66,056 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.08 | 1,017,371 |
| Countries with the Most Tanks | 0 | - | 4.91 | 108,558 |
| Coldest World Capitals | 0 | - | 4.95 | 134,381 |
| World Currency Quiz | 0 | - | 4.92 | 308,013 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 337,647 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 125,207 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 51,345 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 75,305 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,904 |
| Countries with the Most Christians | 0 | - | 4.93 | 145,068 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,449 |
| Buddhist Countries | 0 | - | 4.96 | 145,354 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,104,289 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 324,689 |
| The 2nd Millennium BC | 0 | - | 4.64 | 21,053 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,489 |
| History Analogies #1 | 0 | - | 4.53 | 90,431 |
| History Analogies #2 | 0 | - | 4.49 | 77,554 |
| Current Events by Year, 1990–2009 | 0 | - | 4.77 | 153,110 |
| Current Events by Year, 1970–1989 | 0 | - | 4.56 | 65,393 |
| Current Events by Year, 1930–1949 | 0 | - | 4.47 | 52,265 |
| Groups of Things - History #1 | 0 | - | 4.41 | 94,622 |
| History Analogies #3 | 0 | - | 4.61 | 80,994 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.74 | 58,852 |
| Which Came First? | 0 | - | 4.37 | 75,106 |
| Russian History A-Z | 0 | - | 4.35 | 32,340 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,266 |
| Random History by Country | 0 | - | 4.53 | 35,044 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 62,233 |
| Animals in World History | 0 | - | 4.74 | 44,736 |
| People - Real or Fictional? | 0 | - | 4.56 | 59,200 |
| Places - Real or Fictional? | 0 | - | 4.59 | 49,814 |
| History True or False #3 | 0 | - | 4.43 | 57,348 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.16 | 64,270 |
| A to Z: Legendary Creatures | 0 | - | 4.28 | 53,383 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,428 |
| WWII First Names | 0 | - | 4.45 | 42,032 |
| 1950s Decade Quiz | 0 | - | 4.42 | 49,811 |
| 1960s Decade Quiz #2 | 0 | - | 4.45 | 45,636 |
| Cold War Trivia #1 | 0 | - | 4.42 | 57,634 |
| Events in History #1 | 0 | - | 4.35 | 158,287 |
| Events in Ancient History | 0 | - | 4.50 | 36,241 |
| People Who Died Young #1 | 0 | - | 4.24 | 63,809 |
| Deaths by Date and Cause #1 | 0 | - | 4.38 | 95,609 |
| Deaths by Date and Cause #2 | 0 | - | 4.16 | 68,053 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,601 |
| Countries That Were Invaded | 0 | - | 4.55 | 98,384 |
| Political Quotes | 0 | - | 4.17 | 19,964 |
| This Day in History - April | 0 | - | 4.40 | 44,537 |
| This Day in History - May | 0 | - | 4.33 | 48,491 |
| This Day in History - June | 0 | - | 4.32 | 33,563 |
| This Day in History - November | 0 | - | 4.24 | 33,661 |
| This Day in History - December | 0 | - | 4.32 | 40,619 |
| This Day in History - February | 0 | - | 4.38 | 39,895 |
| The 9th and 10th Century | 0 | - | 4.54 | 37,814 |
| Battle to Country | 0 | - | 4.91 | 54,181 |
| The Life of King David | 0 | - | 4.37 | 14,153 |
| History Multiple Choice #1 | 0 | - | 4.41 | 82,440 |
| Years in History #2 - Multiple Choice | 0 | - | 4.42 | 41,857 |
| History Multiple Choice #2 | 0 | - | 4.43 | 50,256 |
| History Multiple Choice #3 | 0 | - | 4.45 | 48,950 |
| History Multiple Choice #5 | 0 | - | 4.49 | 32,645 |
| Three Real and One Fake - World History | 0 | - | 4.44 | 38,564 |
| English Royal Consorts | 0 | - | 4.38 | 37,575 |
| British History A-Z #1 | 0 | - | 4.45 | 47,377 |
| Kings of France Quiz | 0 | - | 4.22 | 32,979 |
| Dark Ages History | 0 | - | 4.42 | 32,845 |
| 30 Historical People You Probably Don't Know | 0 | - | 4.36 | 61,334 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 341,319 |
| 2016 Obituaries | 0 | - | 4.07 | 18,282 |
| World Capitals in the Answer | 0 | - | 4.94 | 77,876 |
| Monarchies of Europe | 0 | - | 4.90 | 99,112 |
| Monarchies of Asia | 0 | - | 4.97 | 71,657 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,347 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 196,465 |
| Countries with the Most Exports | 0 | - | 4.96 | 156,548 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 190,838 |
| Countries by Oil Consumption | 0 | - | 4.96 | 125,470 |
| Richest Island Countries | 0 | - | 4.85 | 101,496 |
| Largest Economies in 2050 | 0 | - | 4.88 | 112,163 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,606 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 276,017 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 105,303 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.90 | 85,369 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 241,060 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,797 |
| Countries with the Most Catholics | 0 | - | 4.90 | 110,759 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,953 |
| Orthodox Countries | 0 | - | 4.92 | 133,047 |
