| WWII Geography | 0 | - | 4.81 | 121,525 |
| WWII Figures by Picture | 0 | - | 4.89 | 66,512 |
| Countries by Number of Books Published | 0 | - | 4.95 | 73,207 |
| All World Leaders 2026 | 0 | - | 4.95 | 21,146 |
| Authors by Picture | 0 | - | 4.48 | 25,657 |
| Military History Vocabulary | 0 | - | 4.92 | 67,773 |
| "Second Best" History Edition | 0 | - | 4.94 | 64,412 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,672 |
| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,803 |
| Name the English Monarchs | 0 | - | 4.91 | 507,472 |
| WWII Decoder | 0 | - | 4.41 | 53,922 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 55,978 |
| Former Countries by Territory Map | 0 | - | 4.96 | 104,251 |
| Empires by Maps | 0 | - | 4.98 | 122,616 |
| World Leaders of the Cold War | 0 | - | 4.26 | 25,483 |
| Famous Dictators #1 | 0 | - | 4.69 | 200,781 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.78 | 78,406 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,799 |
| WWII for Dummies | 0 | - | 4.78 | 105,896 |
| Countries in World War I | 0 | - | 4.88 | 229,481 |
| The 7 Wonders of the Ancient World | 0 | - | 4.86 | 82,674 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,482 |
| Metals of Antiquity | 0 | - | 4.95 | 94,039 |
| Historical Rulers #2 | 0 | - | 4.24 | 47,815 |
| Historical Rulers #1 | 0 | - | 4.34 | 119,608 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 47,238 |
| History: What Came First? #1 | 0 | - | 4.87 | 106,158 |
| Words for Leaders | 0 | - | 4.77 | 259,280 |
| World Leaders Quiz #1 | 0 | - | 4.12 | 110,378 |
| World Leaders Quiz #2 | 0 | - | 4.01 | 36,111 |
| World Leaders of the World Wars | 0 | - | 4.36 | 38,084 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 54,252 |
| Modern-Day Axis-Occupied Countries of WWII on a Map | 0 | - | 4.99 | 86,819 |
| Years in History #1 - Multiple Choice | 0 | - | 4.82 | 70,727 |
| Influential Women in History | 0 | - | 4.43 | 36,585 |
| Cradles of Civilization | 0 | - | 4.46 | 40,556 |
| Popular Royal Names | 0 | - | 4.27 | 125,470 |
| Materials From History #1 | 0 | - | 4.56 | 52,132 |
| Materials From History #2 | 0 | - | 4.59 | 31,631 |
| Historical Countries by Ruler | 0 | - | 4.48 | 49,354 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,877 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 710,809 |
| First Names of Painters | 0 | - | 4.43 | 60,118 |
| WWII Movies by Plot | 0 | - | 4.22 | 27,191 |
| Communist Countries in History | 0 | - | 4.63 | 498,819 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 146,768 |
| Famous Explorers | 0 | - | 4.58 | 36,416 |
| Famous Empires by Description | 0 | - | 4.74 | 119,076 |
| Answers by Time Period | 0 | - | 4.64 | 55,944 |
| Coups d'Etat - Name the Country | 0 | - | 4.43 | 42,452 |
| Books with Animals in the Title #1 | 0 | - | 4.41 | 74,789 |
| Top 10 Oldest African Countries | 0 | - | 4.87 | 28,310 |
| History of The Netherlands | 0 | - | 4.46 | 17,572 |
| UN Secretaries-General | 0 | - | 4.40 | 7,859 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,702 |
| Countries in World War II | 0 | - | 4.55 | 920,455 |
| Countries Invaded by the USSR | 0 | - | 4.30 | 94,516 |
| Name a Valid Year in History | 0 | - | 4.93 | 68,149 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.94 | 41,321 |
| All Modern-Day Countries Ever Controlled by Arab People with a Map | 0 | - | 4.98 | 55,810 |
| People Portrayed by Andy Warhol | 0 | - | 4.35 | 38,295 |
| 2010s Obituaries | 0 | - | 4.46 | 26,241 |
| Books by Country Quiz | 0 | - | 4.30 | 32,332 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 292,005 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 278,134 |
| Countries with NO Military | 0 | - | 4.97 | 63,633 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 150,059 |
| NATO Countries | 0 | - | 4.98 | 284,094 |
| EU Countries Quiz | 0 | - | 4.99 | 278,995 |
| Top Five Countries by Religion | 0 | - | 4.93 | 173,852 |
| 7 Deadly Sins | 0 | - | 4.88 | 404,920 |
| Books of the Protestant Bible | 0 | - | 4.85 | 212,356 |
| Majority Muslim Countries | 0 | - | 4.98 | 378,523 |
| Former Flags | 0 | - | 4.97 | 108,853 |
| Years in History by Picture | 0 | - | 4.45 | 35,950 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,901 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,514 |
| Former Capitals | 0 | - | 4.88 | 71,735 |
| Important Cities in WWII | 0 | - | 4.42 | 94,290 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,479 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,950 |
| Cold War Decoder | 0 | - | 4.83 | 52,714 |
| Events in History #2 | 0 | - | 4.49 | 72,041 |
| Events in History #3 | 0 | - | 4.41 | 71,961 |
| Events in History #4 | 0 | - | 4.44 | 44,534 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.21 | 49,198 |
| Assassinations in History | 0 | - | 4.21 | 66,474 |
| Famous Founders in the U.S. | 0 | - | 4.03 | 34,839 |
| Famous Seconds | 0 | - | 4.22 | 46,898 |
| Ages and Eras | 0 | - | 4.39 | 67,977 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,588 |
| Titled People Quiz #1 | 0 | - | 4.11 | 45,946 |
| Titled People Quiz #3 | 0 | - | 4.34 | 43,329 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 76,173 |
| Female Historical Figures | 0 | - | 4.28 | 33,411 |
| Historical Blunders | 0 | - | 4.34 | 92,752 |
| Territorial Accessions | 0 | - | 4.34 | 34,962 |
| People Known as "The Great" | 0 | - | 4.46 | 24,816 |
| This Day in History - July | 0 | - | 4.49 | 36,526 |
| This Day in History - August | 0 | - | 4.42 | 43,448 |
| This Day in History - September | 0 | - | 4.55 | 57,596 |
| This Day in History - October | 0 | - | 4.49 | 37,701 |
| This Day in History - January | 0 | - | 4.48 | 46,818 |
| This Day in History - March | 0 | - | 4.45 | 43,769 |
| Ancient Civilizations | 0 | - | 4.64 | 38,174 |
| The Places They Went #1 | 0 | - | 4.74 | 33,588 |
| Famous Inventors | 0 | - | 4.44 | 43,621 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 25,345 |
| European History for Dummies | 0 | - | 4.83 | 90,495 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 32,006 |
| Houses of British Monarchs | 0 | - | 4.54 | 66,034 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.08 | 1,017,167 |
| Countries with the Most Tanks | 0 | - | 4.91 | 108,487 |
| Coldest World Capitals | 0 | - | 4.95 | 134,305 |
| World Currency Quiz | 0 | - | 4.92 | 307,687 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 337,382 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 125,026 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 51,294 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 75,255 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,848 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,974 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,375 |
| Buddhist Countries | 0 | - | 4.96 | 145,281 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,103,877 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 324,455 |
| The 2nd Millennium BC | 0 | - | 4.64 | 21,042 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,477 |
| History Analogies #1 | 0 | - | 4.53 | 90,421 |
| History Analogies #2 | 0 | - | 4.49 | 77,546 |
| Current Events by Year, 1990–2009 | 0 | - | 4.77 | 153,063 |
| Current Events by Year, 1970–1989 | 0 | - | 4.56 | 65,367 |
| Current Events by Year, 1930–1949 | 0 | - | 4.47 | 52,245 |
| Groups of Things - History #1 | 0 | - | 4.41 | 94,590 |
| History Analogies #3 | 0 | - | 4.61 | 80,988 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.74 | 58,832 |
| Which Came First? | 0 | - | 4.37 | 75,094 |
| Russian History A-Z | 0 | - | 4.35 | 32,310 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,262 |
| Random History by Country | 0 | - | 4.53 | 35,039 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 62,215 |
| Animals in World History | 0 | - | 4.74 | 44,722 |
| People - Real or Fictional? | 0 | - | 4.56 | 59,180 |
| Places - Real or Fictional? | 0 | - | 4.59 | 49,802 |
| History True or False #3 | 0 | - | 4.43 | 57,323 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.16 | 64,205 |
| A to Z: Legendary Creatures | 0 | - | 4.28 | 53,356 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,159 |
| WWII First Names | 0 | - | 4.45 | 42,019 |
| 1950s Decade Quiz | 0 | - | 4.42 | 49,781 |
| 1960s Decade Quiz #2 | 0 | - | 4.45 | 45,609 |
| Cold War Trivia #1 | 0 | - | 4.42 | 57,618 |
| Events in History #1 | 0 | - | 4.35 | 158,258 |
| Events in Ancient History | 0 | - | 4.50 | 36,232 |
| People Who Died Young #1 | 0 | - | 4.24 | 63,796 |
| Deaths by Date and Cause #1 | 0 | - | 4.38 | 95,586 |
| Deaths by Date and Cause #2 | 0 | - | 4.16 | 68,035 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,553 |
| Countries That Were Invaded | 0 | - | 4.55 | 98,328 |
| Political Quotes | 0 | - | 4.17 | 19,963 |
| This Day in History - April | 0 | - | 4.40 | 44,529 |
| This Day in History - May | 0 | - | 4.33 | 48,486 |
| This Day in History - June | 0 | - | 4.32 | 33,556 |
| This Day in History - November | 0 | - | 4.24 | 33,656 |
| This Day in History - December | 0 | - | 4.32 | 40,615 |
| This Day in History - February | 0 | - | 4.38 | 39,892 |
| The 9th and 10th Century | 0 | - | 4.54 | 37,805 |
| Battle to Country | 0 | - | 4.91 | 54,135 |
| The Life of King David | 0 | - | 4.37 | 14,152 |
| History Multiple Choice #1 | 0 | - | 4.41 | 82,414 |
| Years in History #2 - Multiple Choice | 0 | - | 4.42 | 41,839 |
| History Multiple Choice #2 | 0 | - | 4.43 | 50,240 |
| History Multiple Choice #3 | 0 | - | 4.45 | 48,938 |
| History Multiple Choice #5 | 0 | - | 4.49 | 32,639 |
| Three Real and One Fake - World History | 0 | - | 4.44 | 38,556 |
| English Royal Consorts | 0 | - | 4.38 | 37,572 |
| British History A-Z #1 | 0 | - | 4.45 | 47,346 |
| Kings of France Quiz | 0 | - | 4.22 | 32,972 |
| Dark Ages History | 0 | - | 4.42 | 32,839 |
| 30 Historical People You Probably Don't Know | 0 | - | 4.36 | 61,315 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 341,133 |
| 2016 Obituaries | 0 | - | 4.07 | 18,256 |
| World Capitals in the Answer | 0 | - | 4.94 | 77,825 |
| Monarchies of Europe | 0 | - | 4.90 | 99,050 |
| Monarchies of Asia | 0 | - | 4.97 | 71,621 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,341 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 196,371 |
| Countries with the Most Exports | 0 | - | 4.96 | 156,408 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 190,709 |
| Countries by Oil Consumption | 0 | - | 4.96 | 125,098 |
| Richest Island Countries | 0 | - | 4.85 | 101,384 |
| Largest Economies in 2050 | 0 | - | 4.88 | 112,087 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,567 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 275,680 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 105,166 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.90 | 85,248 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,997 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,733 |
| Countries with the Most Catholics | 0 | - | 4.90 | 110,668 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,920 |
| Orthodox Countries | 0 | - | 4.92 | 132,987 |
