| G7 Leaders Since 2003 | 0 | - | 4.46 | 39,102 |
| Famous Dictators Quiz #1 | 0 | - | 4.69 | 185,482 |
| Historical Leaders by Date #1 | 0 | - | 4.46 | 28,571 |
| Historical Leaders by Date #2 | 0 | - | 4.54 | 27,498 |
| Historical Rulers #2 | 0 | - | 4.26 | 43,635 |
| World Leaders Quiz #1 | 0 | - | 4.12 | 102,984 |
| UN Secretaries-General | 0 | - | 4.42 | 7,208 |
| Words for Leaders | 0 | - | 4.80 | 220,793 |
| Famous Dictators Quiz #2 | 0 | - | 4.34 | 80,561 |
| World Leaders Quiz #2 | 0 | - | 4.01 | 25,278 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 18,500 |
| NATO Countries Quiz | 0 | - | 4.98 | 244,288 |
| EU Countries Quiz | 0 | - | 4.99 | 231,810 |
| Prime Ministers of the UK | 0 | - | 4.95 | 388,049 |
| "Second Best" History Edition | 0 | - | 4.94 | 48,461 |
| World Leaders of the Cold War | 0 | - | 4.34 | 22,734 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.76 | 59,251 |
| Famous Empires in History | 0 | - | 4.83 | 106,365 |
| Military History Vocabulary | 0 | - | 4.92 | 61,099 |
| U.S. Citizenship Test Questions | 0 | - | 4.86 | 224,500 |
| Political Figures by Last Name #1 | 0 | - | 4.57 | 61,364 |
| World Leaders by Picture | 0 | - | 4.38 | 243,231 |
| Canadian Prime Ministers Quiz | 0 | - | 4.65 | 50,767 |
| World Leaders of the World Wars | 0 | - | 4.39 | 34,778 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.20 | 41,141 |
| Countries of the Popes | 0 | - | 4.84 | 113,824 |
| OPEC Countries Quiz | 0 | - | 4.72 | 81,506 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 68,212 |
| Former Countries by Territory Map | 0 | - | 4.96 | 87,635 |
| Empires by Maps | 0 | - | 4.98 | 97,528 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 47,203 |
| WWII Figures by Picture | 0 | - | 4.87 | 41,882 |
| The 7 Wonders of the Ancient World | 0 | - | 4.81 | 65,842 |
| English Monarchs Quiz | 0 | - | 4.91 | 455,416 |
| Dictators by Picture | 0 | - | 4.25 | 45,161 |
| Prime Ministers of Australia | 0 | - | 4.48 | 28,547 |
| Political Quotes Quiz | 0 | - | 4.09 | 19,080 |
| Metals of Antiquity | 0 | - | 4.94 | 86,465 |
| Cradles of Civilization | 0 | - | 4.42 | 33,164 |
| Materials From History #1 | 0 | - | 4.54 | 45,597 |
| Animals in World History | 0 | - | 4.82 | 40,978 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 40,679 |
| Historical Countries by Ruler | 0 | - | 4.47 | 40,513 |
| History: What Came First? #1 | 0 | - | 4.85 | 92,910 |
| Political Figures by Last Name #2 | 0 | - | 4.05 | 14,991 |
| Spouses of World Leaders | 0 | - | 4.16 | 11,681 |
| First Names of Recent World Leaders | 0 | - | 4.29 | 23,148 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.47 | 14,103 |
| Mythical Creatures Quiz #1 | 0 | - | 4.91 | 663,487 |
| Biggest Nations and Empires Ever | 0 | - | 4.55 | 135,498 |
| Famous Explorers | 0 | - | 4.66 | 33,047 |
| Answers by Time Period | 0 | - | 4.50 | 43,132 |
| Territorial Accessions | 0 | - | 4.43 | 32,535 |
| Years in History #1 - Multiple Choice | 0 | - | 4.84 | 64,021 |
| European Secessionist Movements on a Map | 0 | - | 4.51 | 31,958 |
| Popular Royal Names | 0 | - | 4.27 | 117,977 |
| Paramount Leaders of China | 0 | - | 4.31 | 10,076 |
| Top 10 Oldest African Countries | 0 | - | 4.84 | 23,636 |
| Countries with the Most Military Troops | 0 | - | 4.94 | 229,748 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 235,349 |
| Countries with NO Military | 0 | - | 4.96 | 51,155 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 128,702 |
| Countries by Number of Books Published | 0 | - | 4.95 | 64,944 |
| Top Five Countries by Religion | 0 | - | 4.91 | 146,757 |
| Books of the Protestant Bible | 0 | - | 4.87 | 182,744 |
| Influential Women in History | 0 | - | 4.47 | 30,704 |
| History of The Netherlands | 0 | - | 4.43 | 15,995 |
| Historical Events - AD or BC? | 0 | - | 4.74 | 52,886 |
| Materials From History #2 | 0 | - | 4.57 | 25,085 |
| The Dictator Files: Chairman Mao | 0 | - | 4.32 | 18,729 |
| Name the Popes Quiz | 0 | - | 4.46 | 125,088 |
| WWII Geography | 0 | - | 4.79 | 100,942 |
| 20th Century Dates Quiz | 0 | - | 4.53 | 38,138 |
| Events in History #2 | 0 | - | 4.47 | 67,618 |
| Events in History #4 | 0 | - | 4.44 | 41,501 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.18 | 46,862 |
| Assassinations in History Quiz | 0 | - | 4.17 | 63,433 |
| Famous Seconds Quiz | 0 | - | 4.21 | 44,750 |
| Ages and Eras Quiz | 0 | - | 4.35 | 64,882 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.22 | 38,438 |
| Titled People Quiz #1 | 0 | - | 4.14 | 44,035 |
| Titled People Quiz #3 | 0 | - | 4.33 | 41,499 |
| Job Titles Quiz #1 | 0 | - | 4.23 | 73,823 |
| Historical Blunders | 0 | - | 4.31 | 87,836 |
| This Day in History - April | 0 | - | 4.42 | 43,493 |
| This Day in History - July | 0 | - | 4.48 | 35,331 |
| This Day in History - August | 0 | - | 4.41 | 42,030 |
| This Day in History - September | 0 | - | 4.55 | 55,293 |
| This Day in History - October | 0 | - | 4.49 | 36,494 |
| This Day in History - January | 0 | - | 4.53 | 44,821 |
| This Day in History - February | 0 | - | 4.41 | 38,616 |
| This Day in History - March | 0 | - | 4.44 | 42,216 |
| Ancient Civilizations | 0 | - | 4.56 | 34,987 |
| The Places They Went #1 | 0 | - | 4.77 | 32,570 |
| The Life of King David | 0 | - | 4.43 | 13,509 |
| Famous Inventors | 0 | - | 4.44 | 42,577 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.14 | 956,418 |
| All Disney Animated Movies | 0 | - | 4.85 | 405,866 |
| 7 Deadly Sins Quiz | 0 | - | 4.86 | 349,440 |
| Majority Muslim Countries | 0 | - | 4.97 | 318,017 |
| Former Flags | 0 | - | 4.97 | 83,010 |
| Prime Ministers of Israel | 0 | - | 4.10 | 16,420 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.42 | 24,323 |
| Pope Facts | 0 | - | 4.41 | 28,556 |
| First Names of Painters | 0 | - | 4.38 | 56,806 |
| WWII Decoder | 0 | - | 4.44 | 49,474 |
| Name a Valid Answer - World War II | 0 | - | 4.51 | 49,035 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 88,509 |
| Name a Valid Year in History | 0 | - | 4.92 | 55,197 |
| Houses of British Monarchs | 0 | - | 4.49 | 52,972 |
| U.S. States by Governor Quiz | 0 | - | 4.42 | 17,074 |
| U.S. Political Parties in History | 0 | - | 4.43 | 26,359 |
| U.S. Government Agencies | 0 | - | 4.42 | 17,951 |
| Red State or Blue State Trait? | 0 | - | 4.44 | 49,508 |
| Countries with the Most Tanks | 0 | - | 4.87 | 76,890 |
| Coldest World Capitals | 0 | - | 4.96 | 128,835 |
| World Currency Quiz | 0 | - | 4.92 | 251,925 |
| Countries with the Most Millionaires | 0 | - | 4.85 | 86,513 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 42,836 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 67,597 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 119,903 |
| Countries with the Most Christians | 0 | - | 4.93 | 124,757 |
| Least Christian Countries with Exceptions | 0 | - | 4.89 | 74,963 |
| Buddhist Countries | 0 | - | 4.97 | 132,583 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,018,059 |
| Body Parts in History and Culture | 0 | - | 4.48 | 33,180 |
| History Analogies #1 | 0 | - | 4.47 | 76,593 |
| History Analogies #2 | 0 | - | 4.51 | 65,039 |
| Current Events by Year, 1990–2009 | 0 | - | 4.78 | 145,690 |
| Current Events by Year, 1970–1989 | 0 | - | 4.56 | 62,120 |
| Current Events by Year, 1930–1949 | 0 | - | 4.48 | 49,884 |
| History Analogies #3 | 0 | - | 4.54 | 67,185 |
| People Born on Islands | 0 | - | 4.41 | 40,502 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.72 | 54,508 |
| Which Came First? | 0 | - | 4.35 | 69,987 |
| Years in History by Picture | 0 | - | 4.43 | 30,636 |
| Valid Answer - World History #2 | 0 | - | 4.43 | 40,300 |
| Christopher Columbus Quiz | 0 | - | 4.12 | 7,723 |
| Ancient Greece A-Z | 0 | - | 4.66 | 21,196 |
| States of the German Confederation in 1848 | 0 | - | 4.85 | 27,221 |
| Random History by Country | 0 | - | 4.54 | 31,898 |
| Valid Answer - World History #1 | 0 | - | 4.58 | 57,131 |
| Places - Real or Fictional? | 0 | - | 4.56 | 46,325 |
| History True or False #3 | 0 | - | 4.55 | 37,814 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.64 | 21,171 |
| A to Z: Legendary Creatures | 0 | - | 4.31 | 48,928 |
| WWII First Names | 0 | - | 4.46 | 39,068 |
| WWII for Dummies | 0 | - | 4.76 | 93,663 |
| Events in History #3 | 0 | - | 4.35 | 68,278 |
| Events in History #1 | 0 | - | 4.32 | 150,814 |
| Events in Ancient History | 0 | - | 4.49 | 32,562 |
| Born Here on This Date #1 | 0 | - | 3.90 | 34,572 |
| People Who Died Young #1 | 0 | - | 4.24 | 61,956 |
| Titled People Quiz #2 | 0 | - | 4.35 | 25,592 |
| Deaths by Date and Cause #1 | 0 | - | 4.39 | 78,301 |
| Deaths by Date and Cause #2 | 0 | - | 4.04 | 50,412 |
| Job Titles Quiz #2 | 0 | - | 3.58 | 36,294 |
| Famous Ships Quiz | 0 | - | 4.22 | 28,290 |
| Short Historical Figures | 0 | - | 4.31 | 7,758 |
| Famous Alliances | 0 | - | 4.17 | 8,187 |
| Famous Firsts #1 | 0 | - | 4.42 | 66,238 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 67,314 |
| Coups | 0 | - | 4.38 | 26,592 |
| Famous Documents | 0 | - | 4.07 | 21,109 |
| Invasions | 0 | - | 4.70 | 90,518 |
| Female Historical Figures | 0 | - | 4.30 | 31,495 |
| Legendary Deeds | 0 | - | 4.14 | 28,245 |
| Disasters in History | 0 | - | 4.40 | 24,130 |
| Executions in History | 0 | - | 4.27 | 16,369 |
| Famous Adulterers | 0 | - | 4.14 | 9,798 |
| People Known as "The Great" | 0 | - | 4.40 | 23,107 |
| First Names of Historical Figures #1 | 0 | - | 4.41 | 218,357 |
| This Day in History - May | 0 | - | 4.30 | 47,148 |
| This Day in History - June | 0 | - | 4.34 | 32,769 |
| This Day in History - November | 0 | - | 4.23 | 32,713 |
| This Day in History - December | 0 | - | 4.30 | 39,332 |
| The 19th Century | 0 | - | 4.51 | 63,634 |
| The 18th Century | 0 | - | 4.50 | 49,590 |
| The 16th Century | 0 | - | 4.72 | 55,101 |
| The 21st Century | 0 | - | 4.48 | 96,125 |
| Battle to Country | 0 | - | 4.92 | 36,907 |
| History by Picture - N | 0 | - | 4.41 | 37,168 |
| History Multiple Choice #1 | 0 | - | 4.44 | 76,929 |
| History Multiple Choice #2 | 0 | - | 4.43 | 47,370 |
| History Multiple Choice #4 | 0 | - | 4.41 | 47,722 |
| History Multiple Choice #3 | 0 | - | 4.45 | 46,281 |
| British History A-Z | 0 | - | 4.47 | 40,223 |
| Dark Ages History | 0 | - | 4.43 | 31,763 |
| 30 Historical People You Probably Don't Know | 0 | - | 4.37 | 56,729 |
| The 2nd Millennium BC | 0 | - | 4.53 | 12,513 |
| The U.S. Government - How Does it Work? | 0 | - | 4.32 | 40,222 |
| World Capitals in the Answer | 0 | - | 4.94 | 68,618 |
| Most Powerful Countries Bordering Each Other | 0 | - | 4.86 | 50,626 |
| Monarchies of Europe | 0 | - | 4.89 | 88,362 |
| Monarchies of Asia | 0 | - | 4.95 | 54,892 |
| Capital Cities with the Least Precipitation | 0 | - | 4.90 | 27,665 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 285,569 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 179,755 |
| Countries with the Most Exports | 0 | - | 4.96 | 140,847 |
| Top Crude Oil Producing Countries | 0 | - | 4.90 | 174,693 |
