| Countries by Number of Books Published | 0 | - | 4.95 | 72,899 |
| Top Five Countries by Religion | 0 | - | 4.93 | 172,650 |
| Majority Muslim Countries | 0 | - | 4.98 | 376,324 |
| All World Leaders 2026 | 0 | - | 4.94 | 20,749 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,145 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,737 |
| Buddhist Countries | 0 | - | 4.96 | 144,778 |
| "Second Best" History Edition | 0 | - | 4.94 | 63,714 |
| Military History Vocabulary | 0 | - | 4.91 | 67,451 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,197 |
| Countries with the Most Catholics | 0 | - | 4.90 | 110,014 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,520 |
| Orthodox Countries | 0 | - | 4.92 | 132,458 |
| Countries with the Most Muslims | 0 | - | 4.95 | 160,858 |
| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,665 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,342 |
| Empires by Maps | 0 | - | 4.98 | 121,264 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 53,963 |
| WWII Geography | 0 | - | 4.81 | 120,713 |
| WWII Figures by Picture | 0 | - | 4.89 | 65,952 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,507 |
| Name the English Monarchs | 0 | - | 4.91 | 504,869 |
| Famous Dictators #1 | 0 | - | 4.69 | 200,289 |
| Countries with the Most Cathedrals | 0 | - | 4.48 | 46,953 |
| Sharia Law Countries | 0 | - | 4.48 | 63,861 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,562 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,382 |
| Historical Rulers #2 | 0 | - | 4.27 | 47,627 |
| Historical Rulers #1 | 0 | - | 4.35 | 119,148 |
| World Leaders Quiz #1 | 0 | - | 4.12 | 110,218 |
| World Leaders Quiz #2 | 0 | - | 4.01 | 35,980 |
| The Life of King David | 0 | - | 4.37 | 14,137 |
| Authors by Picture | 0 | - | 4.48 | 25,592 |
| Influential Women in History | 0 | - | 4.42 | 36,182 |
| Metals of Antiquity | 0 | - | 4.95 | 93,707 |
| Cradles of Civilization | 0 | - | 4.46 | 40,135 |
| Materials From History #1 | 0 | - | 4.56 | 51,914 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,951 |
| Historical Countries by Ruler | 0 | - | 4.48 | 49,021 |
| History: What Came First? #1 | 0 | - | 4.87 | 105,653 |
| History - Did They Have It? | 0 | - | 4.84 | 62,058 |
| Words for Leaders | 0 | - | 4.77 | 258,327 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 709,184 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 146,328 |
| Famous Explorers | 0 | - | 4.58 | 36,278 |
| Famous Empires by Description | 0 | - | 4.73 | 118,790 |
| Answers by Time Period | 0 | - | 4.64 | 55,763 |
| Years in History #1 - Multiple Choice | 0 | - | 4.82 | 70,482 |
| Catholic Countries | 0 | - | 4.79 | 215,333 |
| Top 10 Most Islamic European Countries | 0 | - | 4.75 | 161,502 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,118 |
| Popular Royal Names | 0 | - | 4.27 | 125,184 |
| UN Secretaries-General | 0 | - | 4.40 | 7,832 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,670 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,699 |
| First Names of Painters | 0 | - | 4.43 | 59,962 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.94 | 41,173 |
| All Modern-Day Countries Ever Controlled by Arab People with a Map | 0 | - | 4.98 | 55,544 |
| Books with Animals in the Title #1 | 0 | - | 4.41 | 74,678 |
| A Quiz About Islam | 0 | - | 4.31 | 48,541 |
| Cities by Place of Worship - Picture Quiz | 0 | - | 4.40 | 31,074 |
| Books of the Protestant Bible | 0 | - | 4.84 | 211,137 |
| Biblical Geography | 0 | - | 4.40 | 67,276 |
| Countries That Don't Recognize Israel | 0 | - | 4.68 | 35,027 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 290,000 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 275,330 |
| Countries with NO Military | 0 | - | 4.97 | 62,843 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 149,259 |
| NATO Countries | 0 | - | 4.98 | 282,201 |
| EU Countries Quiz | 0 | - | 4.99 | 276,361 |
| Years in History by Picture | 0 | - | 4.44 | 35,664 |
| History of The Netherlands | 0 | - | 4.46 | 17,506 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,739 |
| Materials From History #2 | 0 | - | 4.59 | 31,574 |
| 20th Century Dates Quiz | 0 | - | 4.56 | 39,465 |
| Events in History #2 | 0 | - | 4.49 | 71,875 |
| Events in History #3 | 0 | - | 4.41 | 71,829 |
| Events in History #4 | 0 | - | 4.44 | 44,413 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.21 | 49,108 |
| Assassinations in History | 0 | - | 4.21 | 66,337 |
| Famous Seconds | 0 | - | 4.22 | 46,807 |
| Ages and Eras | 0 | - | 4.39 | 67,848 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,537 |
| Titled People Quiz #1 | 0 | - | 4.11 | 45,879 |
| Titled People Quiz #3 | 0 | - | 4.34 | 43,262 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 76,093 |
| Female Historical Figures | 0 | - | 4.28 | 33,312 |
| Historical Blunders | 0 | - | 4.34 | 92,604 |
| Territorial Accessions | 0 | - | 4.34 | 34,864 |
| People Known as "The Great" | 0 | - | 4.46 | 24,750 |
| This Day in History - July | 0 | - | 4.49 | 36,481 |
| This Day in History - August | 0 | - | 4.42 | 43,390 |
| This Day in History - September | 0 | - | 4.55 | 57,514 |
| This Day in History - October | 0 | - | 4.49 | 37,663 |
| This Day in History - January | 0 | - | 4.47 | 46,759 |
| This Day in History - March | 0 | - | 4.45 | 43,717 |
| Ancient Civilizations | 0 | - | 4.64 | 38,056 |
| The Places They Went #1 | 0 | - | 4.74 | 33,555 |
| Famous Inventors | 0 | - | 4.44 | 43,572 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.08 | 1,015,358 |
| Books by Country Quiz | 0 | - | 4.30 | 32,286 |
| 7 Deadly Sins | 0 | - | 4.88 | 402,214 |
| Former Flags | 0 | - | 4.97 | 108,156 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,283 |
| Historic Orient Express Routes Map | 0 | - | 5.00 | 53,658 |
| WWII Decoder | 0 | - | 4.41 | 53,708 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 55,624 |
| Cold War Decoder | 0 | - | 4.83 | 52,494 |
| Name a Valid Year in History | 0 | - | 4.93 | 67,622 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 25,124 |
| All Modern-Day Countries Ever Controlled by the Seljuks | 0 | - | 4.92 | 28,617 |
| European History for Dummies | 0 | - | 4.83 | 90,179 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,875 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,844 |
| The Bible by Picture | 0 | - | 4.23 | 20,191 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,886 |
| Coldest World Capitals | 0 | - | 4.95 | 134,014 |
| World Currency Quiz | 0 | - | 4.92 | 305,159 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 336,273 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 124,248 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,839 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 75,009 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,415 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,100,265 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 322,390 |
| The 2nd Millennium BC | 0 | - | 4.64 | 20,942 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,392 |
| History Analogies #1 | 0 | - | 4.53 | 90,116 |
| History Analogies #2 | 0 | - | 4.49 | 77,353 |
| Current Events by Year, 1990–2009 | 0 | - | 4.77 | 152,797 |
| Current Events by Year, 1970–1989 | 0 | - | 4.56 | 65,266 |
| Current Events by Year, 1930–1949 | 0 | - | 4.47 | 52,171 |
| Groups of Things - History #1 | 0 | - | 4.41 | 94,329 |
| History Analogies #3 | 0 | - | 4.61 | 80,803 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,658 |
| Which Came First? | 0 | - | 4.37 | 74,945 |
| Russian History A-Z | 0 | - | 4.35 | 31,940 |
| Christopher Columbus Quiz | 0 | - | 4.23 | 8,326 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,200 |
| History of Israel | 0 | - | 3.81 | 11,101 |
| Random History by Country | 0 | - | 4.53 | 34,944 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 62,033 |
| Animals in World History | 0 | - | 4.74 | 44,613 |
| People - Real or Fictional? | 0 | - | 4.56 | 58,993 |
| Places - Real or Fictional? | 0 | - | 4.59 | 49,685 |
| History True or False #3 | 0 | - | 4.43 | 57,077 |
| World Leaders of the Cold War | 0 | - | 4.27 | 25,379 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 78,148 |
| A to Z: Legendary Creatures | 0 | - | 4.28 | 53,194 |
| WWII First Names | 0 | - | 4.44 | 41,891 |
| WWII for Dummies | 0 | - | 4.78 | 105,329 |
| Cold War Trivia #1 | 0 | - | 4.42 | 57,438 |
| Events in History #1 | 0 | - | 4.34 | 157,996 |
| Events in Ancient History | 0 | - | 4.50 | 36,097 |
| Born Here on This Date #1 | 0 | - | 3.92 | 35,419 |
| Famous Founders in the U.S. | 0 | - | 4.00 | 34,675 |
| People Who Died Young #1 | 0 | - | 4.24 | 63,731 |
| Titled People Quiz #2 | 0 | - | 4.38 | 26,812 |
| Deaths by Date and Cause #1 | 0 | - | 4.38 | 95,403 |
| Deaths by Date and Cause #2 | 0 | - | 4.15 | 67,876 |
| Job Titles Quiz #2 | 0 | - | 3.62 | 37,343 |
| Famous Ships Quiz | 0 | - | 4.25 | 29,274 |
| Famous Short People | 0 | - | 4.37 | 17,973 |
| Name the Alliance | 0 | - | 4.29 | 29,839 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,290 |
| Coups d'Etat - Name the Country | 0 | - | 4.40 | 27,722 |
| Famous Documents | 0 | - | 4.05 | 21,849 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,674 |
| Legendary Deeds | 0 | - | 4.16 | 28,935 |
| Disasters in History | 0 | - | 4.40 | 25,731 |
| The 12 Tribes of Israel | 0 | - | 3.68 | 9,924 |
| Executions in History | 0 | - | 4.30 | 17,008 |
| Political Quotes | 0 | - | 4.17 | 19,927 |
| This Day in History - April | 0 | - | 4.40 | 44,493 |
| This Day in History - May | 0 | - | 4.33 | 48,437 |
| This Day in History - June | 0 | - | 4.32 | 33,526 |
| This Day in History - November | 0 | - | 4.24 | 33,630 |
| This Day in History - December | 0 | - | 4.32 | 40,566 |
| This Day in History - February | 0 | - | 4.38 | 39,834 |
| The 19th Century | 0 | - | 4.53 | 68,231 |
| The 18th Century | 0 | - | 4.53 | 53,376 |
| The 16th Century | 0 | - | 4.77 | 58,942 |
| The 9th and 10th Century | 0 | - | 4.54 | 37,749 |
| The 21st Century | 0 | - | 4.47 | 106,239 |
| Battle to Country | 0 | - | 4.91 | 53,681 |
| History Multiple Choice #1 | 0 | - | 4.41 | 82,144 |
| Years in History #2 - Multiple Choice | 0 | - | 4.42 | 41,740 |
| History Multiple Choice #2 | 0 | - | 4.43 | 50,131 |
| History Multiple Choice #3 | 0 | - | 4.45 | 48,825 |
| History Multiple Choice #5 | 0 | - | 4.49 | 32,538 |
| Three Real and One Fake - World History | 0 | - | 4.44 | 38,469 |
| British History A-Z #1 | 0 | - | 4.45 | 46,641 |
| Dark Ages History | 0 | - | 4.42 | 32,792 |
| 30 Historical People You Probably Don't Know | 0 | - | 4.36 | 61,145 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 338,512 |
| Countries Mentioned in the Bible | 0 | - | 4.96 | 67,383 |
| World Capitals in the Answer | 0 | - | 4.94 | 77,428 |
| Monarchies of Europe | 0 | - | 4.90 | 98,511 |
| Monarchies of Asia | 0 | - | 4.97 | 71,335 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,267 |
