| WWII Geography | 0 | - | 4.81 | 120,586 |
| WWII Figures by Picture | 0 | - | 4.89 | 65,790 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,810 |
| All World Leaders 2026 | 0 | - | 4.94 | 20,506 |
| Authors by Picture | 0 | - | 4.48 | 25,563 |
| Military History Vocabulary | 0 | - | 4.91 | 67,306 |
| "Second Best" History Edition | 0 | - | 4.94 | 63,539 |
| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,580 |
| Name the English Monarchs | 0 | - | 4.91 | 504,073 |
| WWII Decoder | 0 | - | 4.41 | 53,665 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 55,551 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,130 |
| Empires by Maps | 0 | - | 4.98 | 120,986 |
| World Leaders of the Cold War | 0 | - | 4.27 | 25,336 |
| Famous Dictators #1 | 0 | - | 4.69 | 200,070 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 78,072 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 53,891 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,428 |
| WWII for Dummies | 0 | - | 4.78 | 105,204 |
| Countries in World War I | 0 | - | 4.88 | 228,504 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,475 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,508 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,315 |
| Metals of Antiquity | 0 | - | 4.95 | 93,620 |
| Historical Rulers #2 | 0 | - | 4.26 | 47,551 |
| Historical Rulers #1 | 0 | - | 4.35 | 119,053 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,881 |
| History: What Came First? #1 | 0 | - | 4.87 | 105,533 |
| History - Did They Have It? | 0 | - | 4.84 | 61,974 |
| Words for Leaders | 0 | - | 4.77 | 257,827 |
| World Leaders Quiz #1 | 0 | - | 4.12 | 110,133 |
| World Leaders Quiz #2 | 0 | - | 4.01 | 35,914 |
| World Leaders of the World Wars | 0 | - | 4.36 | 37,906 |
| Modern-Day Axis-Occupied Countries of WWII on a Map | 0 | - | 4.99 | 86,150 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,414 |
| Influential Women in History | 0 | - | 4.42 | 36,090 |
| Cradles of Civilization | 0 | - | 4.46 | 40,063 |
| Popular Royal Names | 0 | - | 4.27 | 125,089 |
| Materials From History #1 | 0 | - | 4.56 | 51,850 |
| Historical Countries by Ruler | 0 | - | 4.48 | 48,901 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,609 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 708,626 |
| First Names of Painters | 0 | - | 4.43 | 59,920 |
| WWII Movies by Plot | 0 | - | 4.21 | 27,118 |
| Communist Countries in History | 0 | - | 4.63 | 496,610 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 146,218 |
| Famous Explorers | 0 | - | 4.58 | 36,254 |
| Famous Empires by Description | 0 | - | 4.73 | 118,683 |
| Answers by Time Period | 0 | - | 4.64 | 55,711 |
| Books with Animals in the Title #1 | 0 | - | 4.41 | 74,636 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,066 |
| History of The Netherlands | 0 | - | 4.46 | 17,488 |
| UN Secretaries-General | 0 | - | 4.40 | 7,816 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,651 |
| Countries in World War II | 0 | - | 4.55 | 914,952 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 94,165 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.94 | 41,123 |
| All Modern-Day Countries Ever Controlled by Arab People with a Map | 0 | - | 4.98 | 55,471 |
| Books by Country Quiz | 0 | - | 4.30 | 32,263 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 289,442 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 274,613 |
| Countries with NO Military | 0 | - | 4.97 | 62,667 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 149,003 |
| NATO Countries | 0 | - | 4.98 | 281,658 |
| EU Countries Quiz | 0 | - | 4.99 | 275,685 |
| Top Five Countries by Religion | 0 | - | 4.93 | 172,294 |
| 7 Deadly Sins | 0 | - | 4.88 | 401,603 |
| Books of the Protestant Bible | 0 | - | 4.84 | 210,807 |
| Majority Muslim Countries | 0 | - | 4.98 | 375,685 |
| Former Flags | 0 | - | 4.97 | 107,995 |
| Years in History by Picture | 0 | - | 4.44 | 35,616 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,699 |
| Materials From History #2 | 0 | - | 4.59 | 31,556 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,207 |
| Historic Orient Express Routes Map | 0 | - | 5.00 | 53,602 |
| Former Capitals | 0 | - | 4.88 | 71,530 |
| Important Cities in WWII | 0 | - | 4.42 | 93,620 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,131 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,757 |
| Cold War Decoder | 0 | - | 4.83 | 52,457 |
| 20th Century Dates Quiz | 0 | - | 4.56 | 39,445 |
| Events in History #2 | 0 | - | 4.49 | 71,821 |
| Events in History #3 | 0 | - | 4.41 | 71,780 |
| Events in History #4 | 0 | - | 4.44 | 44,378 |
| Name a Valid Year in History | 0 | - | 4.93 | 67,491 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.21 | 49,082 |
| Assassinations in History | 0 | - | 4.21 | 66,303 |
| Famous Seconds | 0 | - | 4.22 | 46,681 |
| Ages and Eras | 0 | - | 4.39 | 67,816 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,523 |
| Titled People Quiz #1 | 0 | - | 4.11 | 45,856 |
| Titled People Quiz #3 | 0 | - | 4.34 | 43,244 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 76,065 |
| Female Historical Figures | 0 | - | 4.28 | 33,298 |
| Historical Blunders | 0 | - | 4.34 | 92,562 |
| Territorial Accessions | 0 | - | 4.34 | 34,845 |
| People Known as "The Great" | 0 | - | 4.46 | 24,731 |
| This Day in History - July | 0 | - | 4.49 | 36,473 |
| This Day in History - August | 0 | - | 4.42 | 43,379 |
| This Day in History - September | 0 | - | 4.55 | 57,489 |
| This Day in History - October | 0 | - | 4.49 | 37,645 |
| This Day in History - January | 0 | - | 4.47 | 46,743 |
| This Day in History - March | 0 | - | 4.45 | 43,695 |
| Ancient Civilizations | 0 | - | 4.64 | 38,021 |
| The Places They Went #1 | 0 | - | 4.74 | 33,551 |
| Famous Inventors | 0 | - | 4.44 | 43,563 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 25,050 |
| All Modern-Day Countries Ever Controlled by the Seljuks | 0 | - | 4.92 | 28,577 |
| European History for Dummies | 0 | - | 4.83 | 90,089 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,849 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,784 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.08 | 1,014,841 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,719 |
| Coldest World Capitals | 0 | - | 4.95 | 133,668 |
| World Currency Quiz | 0 | - | 4.92 | 304,338 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 335,992 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 124,020 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,753 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,923 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,117 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,628 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,548 |
| Buddhist Countries | 0 | - | 4.96 | 144,637 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,099,311 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 321,827 |
| The 2nd Millennium BC | 0 | - | 4.64 | 20,916 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,375 |
| History Analogies #1 | 0 | - | 4.53 | 90,045 |
| History Analogies #2 | 0 | - | 4.49 | 77,302 |
| Current Events by Year, 1990–2009 | 0 | - | 4.77 | 152,719 |
| Current Events by Year, 1970–1989 | 0 | - | 4.56 | 65,230 |
| Current Events by Year, 1930–1949 | 0 | - | 4.47 | 52,143 |
| Groups of Things - History #1 | 0 | - | 4.41 | 94,216 |
| History Analogies #3 | 0 | - | 4.61 | 80,740 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,591 |
| Which Came First? | 0 | - | 4.37 | 74,892 |
| Russian History A-Z | 0 | - | 4.35 | 31,879 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,181 |
| Random History by Country | 0 | - | 4.53 | 34,898 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,980 |
| Animals in World History | 0 | - | 4.74 | 44,580 |
| People - Real or Fictional? | 0 | - | 4.56 | 58,949 |
| Places - Real or Fictional? | 0 | - | 4.59 | 49,652 |
| History True or False #3 | 0 | - | 4.43 | 57,008 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.20 | 49,143 |
| A to Z: Legendary Creatures | 0 | - | 4.27 | 53,144 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,577 |
| WWII First Names | 0 | - | 4.44 | 41,853 |
| Cold War Trivia #1 | 0 | - | 4.42 | 57,393 |
| Events in History #1 | 0 | - | 4.34 | 157,902 |
| Events in Ancient History | 0 | - | 4.50 | 36,060 |
| People Who Died Young #1 | 0 | - | 4.24 | 63,709 |
| Deaths by Date and Cause #1 | 0 | - | 4.38 | 95,355 |
| Deaths by Date and Cause #2 | 0 | - | 4.15 | 67,840 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,223 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,572 |
| Political Quotes | 0 | - | 4.17 | 19,912 |
| This Day in History - April | 0 | - | 4.40 | 44,478 |
| This Day in History - May | 0 | - | 4.33 | 48,410 |
| This Day in History - June | 0 | - | 4.32 | 33,511 |
| This Day in History - November | 0 | - | 4.24 | 33,622 |
| This Day in History - December | 0 | - | 4.32 | 40,552 |
| This Day in History - February | 0 | - | 4.38 | 39,816 |
| The 19th Century | 0 | - | 4.53 | 68,198 |
| The 18th Century | 0 | - | 4.53 | 53,358 |
| The 16th Century | 0 | - | 4.77 | 58,925 |
| The 9th and 10th Century | 0 | - | 4.54 | 37,730 |
| The 21st Century | 0 | - | 4.47 | 106,160 |
| Battle to Country | 0 | - | 4.91 | 53,550 |
| The Life of King David | 0 | - | 4.37 | 14,128 |
| History Multiple Choice #1 | 0 | - | 4.41 | 82,083 |
| Years in History #2 - Multiple Choice | 0 | - | 4.42 | 41,711 |
| History Multiple Choice #2 | 0 | - | 4.43 | 50,101 |
| History Multiple Choice #3 | 0 | - | 4.45 | 48,798 |
| History Multiple Choice #5 | 0 | - | 4.49 | 32,515 |
| Three Real and One Fake - World History | 0 | - | 4.44 | 38,442 |
| Trace the Route of Marco Polo on a Map | 0 | - | 5.00 | 42,408 |
| English Royal Consorts | 0 | - | 4.38 | 37,419 |
| British History A-Z #1 | 0 | - | 4.45 | 46,586 |
| Kings of France Quiz | 0 | - | 4.20 | 32,821 |
| Dark Ages History | 0 | - | 4.42 | 32,784 |
| 30 Historical People You Probably Don't Know | 0 | - | 4.36 | 61,113 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 338,186 |
| World Capitals in the Answer | 0 | - | 4.94 | 77,302 |
| Monarchies of Europe | 0 | - | 4.90 | 98,368 |
| Monarchies of Asia | 0 | - | 4.97 | 71,235 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,237 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 195,519 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,675 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 190,004 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,538 |
| Richest Island Countries | 0 | - | 4.85 | 100,811 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,612 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,258 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 272,712 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,546 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,732 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,767 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,034 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,821 |
