| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 78,055 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,345 |
| Modern-Day Axis-Occupied Countries of WWII on a Map | 0 | - | 4.99 | 86,095 |
| World Leaders of the World Wars | 0 | - | 4.36 | 37,897 |
| Countries in World War I | 0 | - | 4.88 | 228,443 |
| Countries in World War II | 0 | - | 4.54 | 914,637 |
| WWII First Names | 0 | - | 4.44 | 41,839 |
| Important Cities in WWII | 0 | - | 4.42 | 93,597 |
| All World Leaders 2026 | 0 | - | 4.94 | 20,478 |
| Words for Leaders | 0 | - | 4.77 | 257,757 |
| Political Figures by Last Name #1 | 0 | - | 4.56 | 68,185 |
| WWII for Dummies | 0 | - | 4.78 | 105,164 |
| Name the English Monarchs | 0 | - | 4.91 | 503,853 |
| Prime Ministers of the UK | 0 | - | 4.95 | 439,996 |
| Cities Bombed During WWII | 0 | - | 4.09 | 30,203 |
| Countries by Percent WWII Deaths | 0 | - | 4.07 | 30,071 |
| World Leaders by Picture | 0 | - | 4.36 | 265,794 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,635 |
| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,565 |
| Famous Dictators #1 | 0 | - | 4.69 | 200,029 |
| Dictators by Picture | 0 | - | 4.18 | 49,244 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,497 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,306 |
| Historical Rulers #2 | 0 | - | 4.26 | 47,540 |
| Historical Rulers #1 | 0 | - | 4.35 | 119,032 |
| World Leaders Quiz #1 | 0 | - | 4.12 | 110,124 |
| World Leaders Quiz #2 | 0 | - | 4.01 | 35,906 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,863 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,022 |
| Spouses of World Leaders | 0 | - | 4.18 | 12,336 |
| First Names of Recent World Leaders | 0 | - | 4.25 | 25,019 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.20 | 49,116 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,592 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.48 | 15,874 |
| Battle to Country | 0 | - | 4.91 | 53,509 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,934 |
| UN Secretaries-General | 0 | - | 4.40 | 7,813 |
| Prime Ministers of Australia | 0 | - | 4.50 | 32,000 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,647 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,121 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,743 |
| WWII Decoder | 0 | - | 4.41 | 53,649 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,053 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,788 |
| Name that Greek Letter | 0 | - | 4.93 | 324,147 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,408 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,841 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,761 |
| The Trojan War | 0 | - | 4.83 | 39,795 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,222 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,478 |
| WWI... or WWII? | 0 | - | 4.85 | 142,586 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.57 | 14,621 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 94,149 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,643 |
| Roman Emperors | 0 | - | 4.95 | 120,371 |
| British History A-Z #1 | 0 | - | 4.45 | 46,577 |
| "Second Best" History Edition | 0 | - | 4.94 | 63,469 |
| Political Figures by Last Name #2 | 0 | - | 3.90 | 16,778 |
| World Leaders of the Cold War | 0 | - | 4.27 | 25,329 |
| The Dictator Files: Fidel Castro | 0 | - | 4.19 | 12,350 |
| Name the Popes Quiz | 0 | - | 4.47 | 138,418 |
| Countries of the Popes | 0 | - | 4.79 | 128,326 |
| The Vietnam War | 0 | - | 4.44 | 35,573 |
| Political Quotes | 0 | - | 4.17 | 19,909 |
| English Royal Consorts | 0 | - | 4.38 | 37,407 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,102 |
| Empires by Maps | 0 | - | 4.98 | 120,940 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,096 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 53,867 |
| The Life of Winston Churchill | 0 | - | 4.16 | 11,851 |
| Communist Countries in History | 0 | - | 4.63 | 496,463 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,468 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,875 |
| German History A-Z | 0 | - | 4.49 | 24,657 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,048 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,051 |
| Metals of Antiquity | 0 | - | 4.95 | 93,603 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,858 |
| History: What Came First? #1 | 0 | - | 4.87 | 105,490 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,704 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,494 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 708,492 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,876 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 55,533 |
| WWII True or False? | 0 | - | 4.56 | 57,690 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,785 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,987 |
| Roman Names for Places | 0 | - | 4.62 | 58,394 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,707 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,646 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,395 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,202 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,998 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.94 | 41,113 |
| All Modern-Day Countries Ever Controlled by Arab People with a Map | 0 | - | 4.98 | 55,455 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,795 |
| British Royal Titles | 0 | - | 4.18 | 19,966 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,530 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 23,479 |
| French History A-Z | 0 | - | 4.27 | 24,752 |
| NATO Countries | 0 | - | 4.98 | 281,524 |
| EU Countries Quiz | 0 | - | 4.99 | 275,494 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,032 |
| U.S. States by Governor | 0 | - | 4.43 | 18,078 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,716 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,708 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 55,463 |
| Name a Valid Answer - British History | 0 | - | 4.57 | 15,183 |
| Influential Women in History | 0 | - | 4.42 | 36,027 |
| Cradles of Civilization | 0 | - | 4.46 | 40,007 |
| Former Flags | 0 | - | 4.97 | 107,966 |
| Materials From History #1 | 0 | - | 4.56 | 51,822 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,188 |
| Historical Countries by Ruler | 0 | - | 4.48 | 48,869 |
| Historic Orient Express Routes Map | 0 | - | 5.00 | 53,585 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,552 |
| Pope Facts | 0 | - | 4.39 | 31,289 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,523 |
| Cold War Decoder | 0 | - | 4.83 | 52,443 |
| Name a Valid Year in History | 0 | - | 4.93 | 67,456 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 146,184 |
| Famous Explorers | 0 | - | 4.58 | 36,244 |
| Famous Empires by Description | 0 | - | 4.73 | 118,656 |
| Answers by Time Period | 0 | - | 4.64 | 55,689 |
| The American Civil War | 0 | - | 4.62 | 52,497 |
| U.S. Civil War Decoder | 0 | - | 4.14 | 25,300 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,202 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,518 |
| Military History Vocabulary | 0 | - | 4.91 | 67,279 |
| The Life of King David | 0 | - | 4.37 | 14,128 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 25,029 |
| All Modern-Day Countries Ever Controlled by the Seljuks | 0 | - | 4.92 | 28,567 |
| European History for Dummies | 0 | - | 4.83 | 90,062 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,797 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,743 |
| Animals in British History | 0 | - | 4.43 | 26,040 |
| Kings of France Quiz | 0 | - | 4.20 | 32,813 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,730 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,398 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,891 |
| World Capitals in the Answer | 0 | - | 4.94 | 77,282 |
| Monarchies of Europe | 0 | - | 4.90 | 98,339 |
| Monarchies of Asia | 0 | - | 4.97 | 71,216 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,245 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,580 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,998 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,495 |
| Countries Mentioned in the Bible | 0 | - | 4.96 | 67,224 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,761 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,373 |
| Orthodox Countries | 0 | - | 4.92 | 132,231 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,955 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,165 |
| Marvel Cinematic Universe - All Movies | 0 | - | 4.89 | 340,455 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,012 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,366 |
| History Analogies #1 | 0 | - | 4.53 | 90,034 |
| History Analogies #2 | 0 | - | 4.49 | 77,291 |
| Current Events by Year, 1990–2009 | 0 | - | 4.77 | 152,698 |
| Current Events by Year, 1970–1989 | 0 | - | 4.56 | 65,222 |
| Current Events by Year, 1930–1949 | 0 | - | 4.47 | 52,138 |
| Groups of Things - History #1 | 0 | - | 4.41 | 94,201 |
| History Analogies #3 | 0 | - | 4.61 | 80,728 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,573 |
| Spanish History A-Z | 0 | - | 4.37 | 19,322 |
| Italian History A-Z | 0 | - | 4.21 | 17,736 |
| Years in History by Picture | 0 | - | 4.44 | 35,604 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,685 |
| Materials From History #2 | 0 | - | 4.59 | 31,542 |
| Random History by Country | 0 | - | 4.53 | 34,895 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,966 |
| Animals in World History | 0 | - | 4.74 | 44,574 |
| People - Real or Fictional? | 0 | - | 4.56 | 58,930 |
| Places - Real or Fictional? | 0 | - | 4.59 | 49,646 |
| History True or False #3 | 0 | - | 4.43 | 56,997 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,980 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 95,184 |
| Mythology A-Z | 0 | - | 4.31 | 37,280 |
| WWII Geography | 0 | - | 4.81 | 120,547 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,499 |
| WWII Figures by Picture | 0 | - | 4.89 | 65,749 |
| Territory Changes in World War I | 0 | - | 4.87 | 46,900 |
| Cold War Trivia #1 | 0 | - | 4.42 | 57,383 |
| 20th Century Dates Quiz | 0 | - | 4.56 | 39,443 |
| Events in History #2 | 0 | - | 4.49 | 71,807 |
| Events in History #3 | 0 | - | 4.41 | 71,766 |
| Events in History #4 | 0 | - | 4.44 | 44,368 |
| Events in Ancient History | 0 | - | 4.50 | 36,052 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.21 | 49,069 |
| Assassinations in History | 0 | - | 4.21 | 66,285 |
| Famous Seconds | 0 | - | 4.22 | 46,619 |
| Ages and Eras | 0 | - | 4.39 | 67,807 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,515 |
| Titled People Quiz #1 | 0 | - | 4.11 | 45,847 |
| Titled People Quiz #3 | 0 | - | 4.34 | 43,236 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 76,061 |
| U.S. Baby Boy Names by Decade | 0 | - | 4.55 | 490,348 |
| U.S. Baby Girl Names by Decade | 0 | - | 4.42 | 713,768 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,200 |
