| G7 Leaders Since 2003 | 0 | - | 4.46 | 38,862 |
| Famous Dictators Quiz #1 | 0 | - | 4.75 | 184,545 |
| Historical Leaders by Date #1 | 0 | - | 4.46 | 28,434 |
| Historical Leaders by Date #2 | 0 | - | 4.54 | 27,368 |
| Historical Rulers #2 | 0 | - | 4.26 | 43,449 |
| Historical Rulers #1 | 0 | - | 4.32 | 111,930 |
| World Leaders Quiz #1 | 0 | - | 4.12 | 102,586 |
| Words for Leaders | 0 | - | 4.80 | 219,173 |
| Famous Dictators Quiz #2 | 0 | - | 4.34 | 80,258 |
| World Leaders Quiz #2 | 0 | - | 4.01 | 25,168 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 18,448 |
| NATO Countries Quiz | 0 | - | 4.98 | 228,214 |
| EU Countries Quiz | 0 | - | 4.99 | 230,338 |
| Prime Ministers of the UK | 0 | - | 4.95 | 385,272 |
| "Second Best" History Edition | 0 | - | 4.94 | 47,709 |
| World Leaders of the Cold War | 0 | - | 4.34 | 22,634 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.76 | 58,900 |
| Famous Empires in History | 0 | - | 4.83 | 105,303 |
| Military History Vocabulary | 0 | - | 4.92 | 60,734 |
| U.S. Citizenship Test Questions | 0 | - | 4.86 | 223,767 |
| Political Figures by Last Name #1 | 0 | - | 4.57 | 60,955 |
| World Leaders by Picture | 0 | - | 4.38 | 241,533 |
| Canadian Prime Ministers Quiz | 0 | - | 4.64 | 50,316 |
| World Leaders of the World Wars | 0 | - | 4.40 | 34,639 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.20 | 40,964 |
| Countries of the Popes | 0 | - | 4.85 | 112,364 |
| OPEC Countries Quiz | 0 | - | 4.72 | 81,129 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 67,984 |
| Former Countries by Territory Map | 0 | - | 4.96 | 86,965 |
| Empires by Maps | 0 | - | 4.98 | 96,385 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 46,938 |
| WWII Geography | 0 | - | 4.81 | 100,464 |
| WWII Figures by Picture | 0 | - | 4.88 | 41,370 |
| English Monarchs Quiz | 0 | - | 4.91 | 451,909 |
| Dictators by Picture | 0 | - | 4.24 | 44,890 |
| Prime Ministers of Australia | 0 | - | 4.48 | 28,279 |
| Political Quotes Quiz | 0 | - | 4.09 | 19,034 |
| Metals of Antiquity | 0 | - | 4.93 | 85,988 |
| Cradles of Civilization | 0 | - | 4.41 | 32,833 |
| Materials From History #1 | 0 | - | 4.54 | 45,366 |
| Animals in World History | 0 | - | 4.82 | 40,651 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 40,321 |
| Historical Countries by Ruler | 0 | - | 4.45 | 40,036 |
| History: What Came First? #1 | 0 | - | 4.84 | 92,251 |
| Political Figures by Last Name #2 | 0 | - | 4.05 | 14,883 |
| Spouses of World Leaders | 0 | - | 4.16 | 11,653 |
| First Names of Recent World Leaders | 0 | - | 4.29 | 23,021 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.47 | 14,028 |
| Mythical Creatures Quiz #1 | 0 | - | 4.91 | 660,664 |
| Biggest Nations and Empires Ever | 0 | - | 4.55 | 134,805 |
| Famous Explorers | 0 | - | 4.65 | 32,907 |
| Answers by Time Period | 0 | - | 4.50 | 42,937 |
| Territorial Accessions | 0 | - | 4.43 | 32,398 |
| Years in History #1 - Multiple Choice | 0 | - | 4.84 | 63,639 |
| European Secessionist Movements on a Map | 0 | - | 4.51 | 31,747 |
| Popular Royal Names | 0 | - | 4.27 | 117,197 |
| Paramount Leaders of China | 0 | - | 4.31 | 10,018 |
| Top 10 Oldest African Countries | 0 | - | 4.84 | 23,377 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 228,445 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 233,532 |
| Countries with NO Military | 0 | - | 4.97 | 50,522 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 127,137 |
| Countries by Number of Books Published | 0 | - | 4.95 | 64,416 |
| Top Five Countries by Religion | 0 | - | 4.90 | 144,749 |
| Books of the Protestant Bible Quiz | 0 | - | 4.87 | 181,654 |
| Influential Women in History | 0 | - | 4.47 | 30,610 |
| History of The Netherlands | 0 | - | 4.43 | 15,896 |
| Historical Events - AD or BC? | 0 | - | 4.75 | 52,649 |
| Materials From History #2 | 0 | - | 4.58 | 24,989 |
| The Dictator Files: Chairman Mao | 0 | - | 4.32 | 18,651 |
| Name the Popes Quiz | 0 | - | 4.46 | 123,490 |
| 20th Century Dates Quiz | 0 | - | 4.53 | 38,044 |
| Events in History #2 | 0 | - | 4.47 | 67,336 |
| Events in History #4 | 0 | - | 4.44 | 41,314 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.18 | 46,726 |
| Assassinations in History Quiz | 0 | - | 4.17 | 63,304 |
| Famous Seconds Quiz | 0 | - | 4.21 | 44,662 |
| Ages and Eras Quiz | 0 | - | 4.35 | 64,720 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.22 | 38,396 |
| Titled People Quiz #1 | 0 | - | 4.14 | 43,980 |
| Titled People Quiz #3 | 0 | - | 4.33 | 41,428 |
| Job Titles Quiz #1 | 0 | - | 4.23 | 73,705 |
| Historical Blunders | 0 | - | 4.32 | 87,405 |
| This Day in History - April | 0 | - | 4.42 | 43,425 |
| This Day in History - July | 0 | - | 4.48 | 35,216 |
| This Day in History - August | 0 | - | 4.41 | 41,930 |
| This Day in History - September | 0 | - | 4.55 | 55,129 |
| This Day in History - October | 0 | - | 4.49 | 36,406 |
| This Day in History - January | 0 | - | 4.53 | 44,668 |
| This Day in History - February | 0 | - | 4.41 | 38,513 |
| This Day in History - March | 0 | - | 4.44 | 42,115 |
| The 7 Wonders of the Ancient World | 0 | - | 4.79 | 65,753 |
| Ancient Civilizations | 0 | - | 4.56 | 34,837 |
| The Places They Went #1 | 0 | - | 4.77 | 32,493 |
| The Life of King David | 0 | - | 4.43 | 13,476 |
| Famous Inventors | 0 | - | 4.44 | 42,522 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.14 | 951,057 |
| All Disney Animated Movies | 0 | - | 4.84 | 395,031 |
| 7 Deadly Sins Quiz | 0 | - | 4.86 | 348,193 |
| Former Flags | 0 | - | 4.98 | 82,437 |
| Prime Ministers of Israel | 0 | - | 4.10 | 16,301 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.42 | 24,209 |
| Pope Facts | 0 | - | 4.41 | 28,231 |
| First Names of Painters | 0 | - | 4.38 | 56,595 |
| WWII Decoder | 0 | - | 4.44 | 49,249 |
| Name a Valid Answer - World War II | 0 | - | 4.51 | 48,659 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 88,096 |
| Name a Valid Year in History | 0 | - | 4.92 | 54,462 |
| Houses of British Monarchs | 0 | - | 4.50 | 52,616 |
| U.S. States by Governor Quiz | 0 | - | 4.42 | 17,025 |
| U.S. Political Parties in History | 0 | - | 4.43 | 26,287 |
| U.S. Government Agencies | 0 | - | 4.41 | 17,828 |
| Red State or Blue State Trait? | 0 | - | 4.44 | 49,059 |
| Countries with the Most Tanks | 0 | - | 4.89 | 76,405 |
| Coldest World Capitals | 0 | - | 4.96 | 128,508 |
| World Currency Quiz | 0 | - | 4.92 | 249,841 |
| Countries with the Most Millionaires | 0 | - | 4.85 | 85,499 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 42,307 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 67,153 |
| Cities with the Biggest Economies | 0 | - | 4.92 | 119,371 |
| Countries with the Most Christians | 0 | - | 4.93 | 123,445 |
| Least Christian Countries with Exceptions | 0 | - | 4.89 | 74,120 |
| Majority Muslim Countries | 0 | - | 4.97 | 316,200 |
| Buddhist Countries | 0 | - | 4.97 | 131,796 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,014,239 |
| Body Parts in History and Culture | 0 | - | 4.48 | 33,015 |
| History Analogies #1 | 0 | - | 4.47 | 76,280 |
| History Analogies #2 | 0 | - | 4.51 | 64,799 |
| Current Events by Year, 1990–2009 | 0 | - | 4.75 | 145,237 |
| Current Events by Year, 1970–1989 | 0 | - | 4.56 | 61,923 |
| Current Events by Year, 1930–1949 | 0 | - | 4.48 | 49,779 |
| History Analogies #3 | 0 | - | 4.54 | 66,945 |
| People Born on Islands | 0 | - | 4.43 | 40,357 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.72 | 54,259 |
| Which Came First? | 0 | - | 4.35 | 69,703 |
| Years in History by Picture | 0 | - | 4.43 | 30,410 |
| Valid Answer - World History #2 | 0 | - | 4.42 | 39,811 |
| Christopher Columbus Quiz | 0 | - | 4.12 | 7,711 |
| Ancient Greece A-Z | 0 | - | 4.63 | 20,969 |
| States of the German Confederation in 1848 | 0 | - | 4.84 | 26,925 |
| Random History by Country | 0 | - | 4.53 | 31,717 |
| Valid Answer - World History #1 | 0 | - | 4.57 | 56,812 |
| Places - Real or Fictional? | 0 | - | 4.56 | 46,102 |
| History True or False #3 | 0 | - | 4.55 | 37,447 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.64 | 21,083 |
| A to Z: Legendary Creatures | 0 | - | 4.31 | 48,657 |
| WWII First Names | 0 | - | 4.46 | 38,916 |
| WWII for Dummies | 0 | - | 4.76 | 92,979 |
| Events in History #3 | 0 | - | 4.35 | 68,037 |
| Events in History #1 | 0 | - | 4.32 | 150,379 |
| Events in Ancient History | 0 | - | 4.49 | 32,355 |
| Born Here on This Date #1 | 0 | - | 3.90 | 34,546 |
| People Who Died Young #1 | 0 | - | 4.24 | 61,884 |
| Titled People Quiz #2 | 0 | - | 4.35 | 25,557 |
| Deaths by Date and Cause #1 | 0 | - | 4.39 | 78,077 |
| Deaths by Date and Cause #2 | 0 | - | 4.04 | 50,328 |
| Job Titles Quiz #2 | 0 | - | 3.57 | 36,261 |
| Famous Ships Quiz | 0 | - | 4.22 | 28,249 |
| Short Historical Figures | 0 | - | 4.31 | 7,735 |
| Famous Alliances | 0 | - | 4.17 | 8,151 |
| Famous Firsts #1 | 0 | - | 4.42 | 65,999 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 66,879 |
| Coups | 0 | - | 4.38 | 26,536 |
| Famous Documents | 0 | - | 4.07 | 21,070 |
| Invasions | 0 | - | 4.70 | 90,164 |
| Female Historical Figures | 0 | - | 4.30 | 31,421 |
| Legendary Deeds | 0 | - | 4.14 | 28,202 |
| Disasters in History | 0 | - | 4.40 | 24,051 |
| Executions in History | 0 | - | 4.27 | 16,330 |
| Famous Adulterers | 0 | - | 4.14 | 9,774 |
| People Known as "The Great" | 0 | - | 4.40 | 23,026 |
| First Names of Historical Figures #1 | 0 | - | 4.41 | 217,704 |
| This Day in History - May | 0 | - | 4.30 | 47,054 |
| This Day in History - June | 0 | - | 4.34 | 32,701 |
| This Day in History - November | 0 | - | 4.23 | 32,651 |
| This Day in History - December | 0 | - | 4.30 | 39,251 |
| The 19th Century | 0 | - | 4.50 | 62,909 |
| The 18th Century | 0 | - | 4.50 | 48,611 |
| The 16th Century | 0 | - | 4.71 | 50,299 |
| 19th Century A-Z | 0 | - | 4.82 | 34,644 |
| The 21st Century | 0 | - | 4.50 | 95,070 |
| Battle to Country | 0 | - | 4.92 | 36,419 |
| History by Picture - N | 0 | - | 4.41 | 36,874 |
| History Multiple Choice #1 | 0 | - | 4.44 | 76,517 |
| History Multiple Choice #2 | 0 | - | 4.43 | 47,161 |
| History Multiple Choice #3 | 0 | - | 4.45 | 46,065 |
| British History A-Z | 0 | - | 4.47 | 39,910 |
| Dark Ages History | 0 | - | 4.43 | 31,690 |
| 30 Historical People You Probably Don't Know | 0 | - | 4.40 | 56,354 |
| The 2nd Millennium BC | 0 | - | 4.52 | 12,240 |
| The U.S. Government - How Does it Work? | 0 | - | 4.32 | 40,079 |
| World Capitals in the Answer | 0 | - | 4.94 | 68,130 |
| Most Powerful Countries Bordering Each Other | 0 | - | 4.85 | 50,176 |
| Monarchies of Europe | 0 | - | 4.88 | 87,803 |
| Monarchies of Asia | 0 | - | 4.95 | 54,565 |
| Capital Cities with the Least Precipitation | 0 | - | 4.90 | 27,559 |
| Countries with the Most Billionaires | 0 | - | 4.94 | 284,034 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 178,620 |
| Countries with the Most Exports | 0 | - | 4.96 | 139,504 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 169,073 |
