| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,140 |
| Famous Dictators #1 | 0 | - | 4.69 | 198,824 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,230 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,068 |
| Historical Rulers #2 | 0 | - | 4.26 | 47,218 |
| Historical Rulers #1 | 0 | - | 4.35 | 118,494 |
| World Leaders Quiz #1 | 0 | - | 4.11 | 109,655 |
| Words for Leaders | 0 | - | 4.77 | 255,216 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,119 |
| World Leaders Quiz #2 | 0 | - | 4.00 | 35,659 |
| UN Secretaries-General | 0 | - | 4.40 | 7,763 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,545 |
| NATO Countries | 0 | - | 4.98 | 275,910 |
| EU Countries Quiz | 0 | - | 4.99 | 270,061 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,803 |
| "Second Best" History Edition | 0 | - | 4.93 | 61,873 |
| World Leaders of the Cold War | 0 | - | 4.27 | 25,125 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,345 |
| Military History Vocabulary | 0 | - | 4.91 | 66,669 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,373 |
| Political Figures by Last Name #1 | 0 | - | 4.55 | 67,455 |
| World Leaders by Picture | 0 | - | 4.36 | 263,467 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,060 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,657 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,689 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.18 | 47,692 |
| OPEC Countries | 0 | - | 4.74 | 84,829 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,539 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,607 |
| Empires by Maps | 0 | - | 4.98 | 118,573 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,246 |
| WWII Geography | 0 | - | 4.81 | 119,379 |
| WWII Figures by Picture | 0 | - | 4.85 | 50,558 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,100 |
| Name the English Monarchs | 0 | - | 4.92 | 498,110 |
| Dictators by Picture | 0 | - | 4.18 | 48,877 |
| Political Quotes | 0 | - | 4.17 | 19,803 |
| Influential Women in History | 0 | - | 4.42 | 35,046 |
| Metals of Antiquity | 0 | - | 4.94 | 92,932 |
| Cradles of Civilization | 0 | - | 4.46 | 39,112 |
| Materials From History #1 | 0 | - | 4.56 | 50,634 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,191 |
| Historical Countries by Ruler | 0 | - | 4.48 | 48,136 |
| History: What Came First? #1 | 0 | - | 4.87 | 104,222 |
| History - Did They Have It? | 0 | - | 4.84 | 61,124 |
| Spouses of World Leaders | 0 | - | 4.18 | 12,285 |
| First Names of Recent World Leaders | 0 | - | 4.25 | 24,858 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.48 | 15,760 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 704,459 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,229 |
| Famous Explorers | 0 | - | 4.58 | 35,965 |
| Famous Empires by Description | 0 | - | 4.70 | 117,797 |
| Answers by Time Period | 0 | - | 4.63 | 55,282 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,674 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,752 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,466 |
| Popular Royal Names | 0 | - | 4.27 | 124,491 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,004 |
| First Names of Painters | 0 | - | 4.43 | 59,605 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.95 | 40,703 |
| All Modern-Day Countries Ever Controlled by Arab People with a Map | 0 | - | 4.98 | 54,880 |
| All Modern-Day Countries Ever Controlled by the British | 0 | - | 4.81 | 49,387 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,053 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,468 |
| Countries with NO Military | 0 | - | 4.97 | 61,206 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 146,808 |
| Countries by Number of Books Published | 0 | - | 4.95 | 71,927 |
| Top Five Countries by Religion | 0 | - | 4.93 | 169,118 |
| Books of the Protestant Bible | 0 | - | 4.89 | 207,305 |
| Years in History by Picture | 0 | - | 4.44 | 35,124 |
| History of The Netherlands | 0 | - | 4.46 | 17,319 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,205 |
| Materials From History #2 | 0 | - | 4.59 | 30,922 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,579 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,191 |
| Countries of the Popes | 0 | - | 4.79 | 127,251 |
| 20th Century Dates Quiz | 0 | - | 4.56 | 39,323 |
| Events in History #2 | 0 | - | 4.49 | 71,446 |
| Events in History #4 | 0 | - | 4.44 | 44,112 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.21 | 48,823 |
| Assassinations in History | 0 | - | 4.21 | 65,968 |
| Famous Seconds | 0 | - | 4.22 | 46,400 |
| Ages and Eras | 0 | - | 4.38 | 67,471 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,403 |
| Titled People Quiz #1 | 0 | - | 4.10 | 45,618 |
| Titled People Quiz #3 | 0 | - | 4.34 | 43,041 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 75,828 |
| Female Historical Figures | 0 | - | 4.31 | 33,106 |
| Historical Blunders | 0 | - | 4.33 | 91,699 |
| Territorial Accessions | 0 | - | 4.38 | 34,643 |
| People Known as "The Great" | 0 | - | 4.46 | 24,530 |
| This Day in History - July | 0 | - | 4.49 | 36,372 |
| This Day in History - August | 0 | - | 4.42 | 43,255 |
| This Day in History - September | 0 | - | 4.55 | 57,267 |
| This Day in History - October | 0 | - | 4.49 | 37,554 |
| This Day in History - January | 0 | - | 4.53 | 46,576 |
| This Day in History - March | 0 | - | 4.45 | 43,546 |
| Ancient Civilizations | 0 | - | 4.63 | 37,767 |
| The Places They Went #1 | 0 | - | 4.74 | 33,447 |
| Famous Inventors | 0 | - | 4.43 | 43,461 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.09 | 1,011,035 |
| 7 Deadly Sins | 0 | - | 4.88 | 395,133 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,643 |
| Former Flags | 0 | - | 4.97 | 106,736 |
| Historic Orient Express Routes Map | 0 | - | 5.00 | 52,975 |
| Political Figures by Last Name #2 | 0 | - | 3.88 | 16,601 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,650 |
| WWII Decoder | 0 | - | 4.41 | 53,054 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 54,771 |
| Cold War Decoder | 0 | - | 4.83 | 51,944 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,563 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,439 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,492 |
| All Modern-Day Countries Ever Controlled by the Seljuks | 0 | - | 4.92 | 28,286 |
| European History for Dummies | 0 | - | 4.82 | 89,335 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,308 |
| U.S. States by Governor | 0 | - | 4.43 | 17,984 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,579 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,552 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 54,959 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,307 |
| Coldest World Capitals | 0 | - | 4.95 | 133,061 |
| World Currency Quiz | 0 | - | 4.92 | 298,630 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,948 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 122,135 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,767 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,157 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,723 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,507 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,956 |
| Buddhist Countries | 0 | - | 4.96 | 142,982 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,090,966 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 317,122 |
| The 2nd Millennium BC | 0 | - | 4.64 | 20,705 |
| Body Parts in History and Culture | 0 | - | 4.42 | 35,116 |
| History Analogies #1 | 0 | - | 4.53 | 89,787 |
| History Analogies #2 | 0 | - | 4.49 | 77,008 |
| Current Events by Year, 1990–2009 | 0 | - | 4.77 | 152,151 |
| Current Events by Year, 1970–1989 | 0 | - | 4.56 | 64,965 |
| Current Events by Year, 1930–1949 | 0 | - | 4.48 | 51,933 |
| History Analogies #3 | 0 | - | 4.61 | 80,442 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,162 |
| Which Came First? | 0 | - | 4.37 | 74,411 |
| Christopher Columbus Quiz | 0 | - | 4.21 | 8,263 |
| Ancient Greece A-Z | 0 | - | 4.60 | 22,988 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,541 |
| Random History by Country | 0 | - | 4.53 | 34,665 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,556 |
| Animals in World History | 0 | - | 4.74 | 44,225 |
| People - Real or Fictional? | 0 | - | 4.56 | 58,477 |
| Places - Real or Fictional? | 0 | - | 4.59 | 49,367 |
| History True or False #3 | 0 | - | 4.43 | 55,939 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,322 |
| A to Z: Legendary Creatures | 0 | - | 4.26 | 52,761 |
| WWII First Names | 0 | - | 4.44 | 41,571 |
| WWII for Dummies | 0 | - | 4.80 | 103,876 |
| Cold War Trivia #1 | 0 | - | 4.41 | 56,967 |
| Events in History #3 | 0 | - | 4.40 | 71,463 |
| Events in History #1 | 0 | - | 4.34 | 157,296 |
| Events in Ancient History | 0 | - | 4.50 | 35,726 |
| Born Here on This Date #1 | 0 | - | 3.92 | 35,290 |
| People Who Died Young #1 | 0 | - | 4.24 | 63,542 |
| Titled People Quiz #2 | 0 | - | 4.38 | 26,648 |
| Deaths by Date and Cause #1 | 0 | - | 4.37 | 94,902 |
| Deaths by Date and Cause #2 | 0 | - | 4.15 | 67,491 |
| Job Titles Quiz #2 | 0 | - | 3.62 | 37,246 |
| Famous Ships Quiz | 0 | - | 4.25 | 29,166 |
| Famous Short People | 0 | - | 4.26 | 15,079 |
| Name the Alliance | 0 | - | 4.29 | 29,175 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,574 |
| Coups | 0 | - | 4.40 | 27,583 |
| Famous Documents | 0 | - | 4.05 | 21,764 |
| Countries That Were Invaded | 0 | - | 4.54 | 96,924 |
| Legendary Deeds | 0 | - | 4.16 | 28,856 |
| Disasters in History | 0 | - | 4.40 | 25,607 |
| Executions in History | 0 | - | 4.29 | 16,922 |
| This Day in History - April | 0 | - | 4.40 | 44,393 |
| This Day in History - May | 0 | - | 4.33 | 48,257 |
| This Day in History - June | 0 | - | 4.36 | 33,435 |
| This Day in History - November | 0 | - | 4.24 | 33,534 |
| This Day in History - December | 0 | - | 4.32 | 40,453 |
| This Day in History - February | 0 | - | 4.38 | 39,702 |
| The 19th Century | 0 | - | 4.53 | 67,885 |
| The 18th Century | 0 | - | 4.52 | 53,123 |
| The 16th Century | 0 | - | 4.77 | 58,740 |
| The 9th and 10th Century | 0 | - | 4.54 | 37,540 |
| The 21st Century | 0 | - | 4.48 | 105,315 |
| Battle to Country | 0 | - | 4.91 | 52,555 |
| The Life of King David | 0 | - | 4.37 | 14,061 |
| History Multiple Choice #1 | 0 | - | 4.46 | 81,528 |
| Years in History #2 - Multiple Choice | 0 | - | 4.43 | 41,419 |
| History Multiple Choice #2 | 0 | - | 4.43 | 49,812 |
| History Multiple Choice #3 | 0 | - | 4.45 | 48,549 |
| History Multiple Choice #5 | 0 | - | 4.49 | 32,269 |
| Three Real and One Fake - World History | 0 | - | 4.44 | 38,194 |
| British History A-Z #1 | 0 | - | 4.45 | 45,925 |
| Dark Ages History | 0 | - | 4.42 | 32,679 |
| 30 Historical People You Probably Don't Know | 0 | - | 4.36 | 60,821 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 335,571 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,177 |
