| WWII Figures by Picture | 0 | - | 4.89 | 65,022 |
| Countries in World War I | 0 | - | 4.88 | 227,756 |
| WWII Geography | 0 | - | 4.81 | 120,075 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,634 |
| Modern-Day Axis-Occupied Countries of WWII on a Map | 0 | - | 4.99 | 85,609 |
| WWII Decoder | 0 | - | 4.41 | 53,456 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 55,256 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,752 |
| Countries in World War II | 0 | - | 4.54 | 910,344 |
| WWII for Dummies | 0 | - | 4.80 | 104,664 |
| WWI... or WWII? | 0 | - | 4.85 | 141,800 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,789 |
| Military History Vocabulary | 0 | - | 4.91 | 66,986 |
| Important Cities in WWII | 0 | - | 4.42 | 93,320 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,471 |
| Empires by Maps | 0 | - | 4.98 | 119,860 |
| Name the English Monarchs | 0 | - | 4.91 | 501,180 |
| WWII A-Z #1 | 0 | - | 4.78 | 102,820 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,572 |
| WWII First Names | 0 | - | 4.44 | 41,736 |
| WWII Movies by Plot | 0 | - | 4.21 | 27,053 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 287,230 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 271,585 |
| Countries with NO Military | 0 | - | 4.97 | 61,879 |
| Former Flags | 0 | - | 4.97 | 107,415 |
| Cities Bombed During WWII | 0 | - | 4.08 | 30,082 |
| Countries by Percent WWII Deaths | 0 | - | 4.07 | 29,946 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,050 |
| Years in History by Picture | 0 | - | 4.44 | 35,416 |
| Battle to Country | 0 | - | 4.91 | 53,088 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,450 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,807 |
| Name that Greek Letter | 0 | - | 4.93 | 322,986 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,727 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,550 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 336,954 |
| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,339 |
| The Trojan War | 0 | - | 4.83 | 39,629 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,471 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,431 |
| The American Civil War | 0 | - | 4.62 | 52,357 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,389 |
| Roman Emperors | 0 | - | 4.95 | 119,593 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,887 |
| British History A-Z #1 | 0 | - | 4.45 | 46,375 |
| Name that Historical Figure #2 | 0 | - | 4.41 | 284,045 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 107,381 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.50 | 50,674 |
| "Second Best" History Edition | 0 | - | 4.94 | 62,710 |
| World Leaders of the Cold War | 0 | - | 4.27 | 25,237 |
| Famous Dictators #1 | 0 | - | 4.69 | 199,402 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,903 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,121 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,676 |
| History by Picture - A | 0 | - | 4.25 | 45,720 |
| History by Picture - B | 0 | - | 4.40 | 48,868 |
| History by Picture - C | 0 | - | 4.36 | 54,393 |
| History by Picture - F | 0 | - | 4.35 | 37,820 |
| History by Picture - G | 0 | - | 4.40 | 42,079 |
| History by Picture - D | 0 | - | 4.29 | 44,251 |
| History by Picture - E | 0 | - | 4.27 | 43,858 |
| History by Picture - H | 0 | - | 4.37 | 36,736 |
| History by Picture - K | 0 | - | 4.35 | 33,309 |
| History by Picture - M | 0 | - | 4.17 | 36,101 |
| History by Picture - N | 0 | - | 4.40 | 41,199 |
| History by Picture - O | 0 | - | 4.39 | 36,259 |
| History by Picture - T | 0 | - | 4.20 | 33,269 |
| English Royal Consorts | 0 | - | 4.37 | 37,305 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,339 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,163 |
| Historical Rulers #2 | 0 | - | 4.26 | 47,366 |
| Historical Rulers #1 | 0 | - | 4.35 | 118,747 |
| Popular Royal Names | 0 | - | 4.27 | 124,814 |
| Words for Leaders | 0 | - | 4.77 | 256,653 |
| World Leaders Quiz #1 | 0 | - | 4.11 | 109,898 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,354 |
| First Names of Painters | 0 | - | 4.43 | 59,789 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,570 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,901 |
| Communist Countries in History | 0 | - | 4.63 | 494,701 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,313 |
| Roman History by Picture | 0 | - | 4.46 | 26,429 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,797 |
| German History A-Z | 0 | - | 4.49 | 24,561 |
| Name that Historical Figure #3 | 0 | - | 4.36 | 238,935 |
| Name that Historical Figure #4 | 0 | - | 4.29 | 158,841 |
| Name that Historical Figure #6 | 0 | - | 4.26 | 93,088 |
| All Country Flags of the World | 0 | - | 5.00 | 3,644,495 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,807 |
| A-Z Cities by Pictures | 0 | - | 4.56 | 43,755 |
| Countries with U.S. Troops | 0 | - | 4.38 | 131,970 |
| Countries With the Largest Air Forces | 0 | - | 4.47 | 51,399 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,055 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,852 |
| Metals of Antiquity | 0 | - | 4.94 | 93,269 |
| History of The Netherlands | 0 | - | 4.46 | 17,400 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,554 |
| History: What Came First? #1 | 0 | - | 4.87 | 105,022 |
| History: What Came First? #2 | 0 | - | 4.81 | 79,317 |
| Trace the Route of Ibn Battuta on a Map | 0 | - | 4.99 | 22,551 |
| History - Did They Have It? | 0 | - | 4.84 | 61,637 |
| World Leaders Quiz #2 | 0 | - | 4.00 | 35,794 |
| UN Secretaries-General | 0 | - | 4.40 | 7,782 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,589 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 706,468 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,421 |
| WWII True or False? | 0 | - | 4.56 | 57,393 |
| Women in History by Picture | 0 | - | 4.25 | 25,878 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,678 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,841 |
| Roman Names for Places | 0 | - | 4.62 | 58,151 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,596 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,507 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,232 |
| History by Picture - I | 0 | - | 4.26 | 26,173 |
| History by Picture - J | 0 | - | 4.18 | 26,689 |
| History by Picture - L | 0 | - | 4.18 | 30,729 |
| History by Picture - P | 0 | - | 4.08 | 25,256 |
| History by Picture - Q | 0 | - | 4.03 | 22,049 |
| History by Picture - R | 0 | - | 4.13 | 26,808 |
| History by Picture - S | 0 | - | 4.14 | 27,745 |
| History by Picture - U | 0 | - | 4.24 | 25,086 |
| History by Picture - V | 0 | - | 4.30 | 25,059 |
| History by Picture - W | 0 | - | 4.01 | 21,610 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,161 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,087 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,921 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.94 | 40,930 |
| All Modern-Day Countries Ever Controlled by Arab People with a Map | 0 | - | 4.98 | 55,201 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,704 |
| British Royal Titles | 0 | - | 4.18 | 19,929 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,482 |
| British History True or False #1 | 0 | - | 4.55 | 37,293 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 23,409 |
| French History A-Z | 0 | - | 4.23 | 24,522 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,176 |
| Countries by Road Signs | 0 | - | 4.98 | 53,594 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,408 |
| Flags with Crescents | 0 | - | 4.98 | 168,934 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,533,856 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,091,230 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 732,314 |
| Country Flag Trivia | 0 | - | 4.81 | 56,702 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 103,329 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,173 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 86,948 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,054 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,963 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,561 |
| National Football Team Logos | 0 | - | 4.85 | 179,878 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 147,849 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,351 |
| NATO Countries | 0 | - | 4.98 | 279,010 |
| EU Countries Quiz | 0 | - | 4.99 | 272,615 |
| Top Five Countries by Religion | 0 | - | 4.93 | 170,577 |
| 7 Deadly Sins | 0 | - | 4.88 | 398,844 |
| Books of the Protestant Bible | 0 | - | 4.89 | 209,255 |
| Majority Muslim Countries | 0 | - | 4.98 | 372,881 |
| Name a Valid Answer - British History | 0 | - | 4.57 | 15,127 |
| Influential Women in History | 0 | - | 4.42 | 35,472 |
| Cradles of Civilization | 0 | - | 4.46 | 39,531 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,110 |
| Materials From History #1 | 0 | - | 4.56 | 51,454 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,858 |
| Historical Countries by Ruler | 0 | - | 4.48 | 48,509 |
| Historic Orient Express Routes Map | 0 | - | 4.99 | 53,374 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.20 | 48,575 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,624 |
| Former Capitals | 0 | - | 4.88 | 71,354 |
| Flags of WW1 | 0 | - | 4.60 | 38,266 |
| Cold War Decoder | 0 | - | 4.83 | 52,234 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,977 |
| Biggest Nations and Empires Ever | 0 | - | 4.52 | 145,700 |
| Famous Explorers | 0 | - | 4.58 | 36,111 |
| Famous Empires by Description | 0 | - | 4.73 | 118,301 |
| Answers by Time Period | 0 | - | 4.64 | 55,498 |
| Political Quotes | 0 | - | 4.17 | 19,863 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,159 |
| The Life of Alexander the Great | 0 | - | 4.49 | 18,473 |
| The Life of King David | 0 | - | 4.37 | 14,111 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,787 |
| All Modern-Day Countries Ever Controlled by the Seljuks | 0 | - | 4.92 | 28,446 |
| Trace the Route of Marco Polo on a Map | 0 | - | 5.00 | 42,187 |
| Countries Visited by Christopher Columbus | 0 | - | 4.85 | 21,894 |
| European History for Dummies | 0 | - | 4.83 | 89,719 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,564 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,437 |
| Animals in British History | 0 | - | 4.44 | 25,967 |
| Kings of France Quiz | 0 | - | 4.20 | 32,673 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,828 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,841 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,268 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,259 |
| Famous Canadians by Picture | 0 | - | 4.39 | 49,299 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,238,984 |
| Flags of Asia Quiz | 0 | - | 4.99 | 610,973 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,325 |
| Flags of Africa Quiz | 0 | - | 5.00 | 468,745 |
| Flags of Oceania | 0 | - | 5.00 | 257,894 |
| Flags of North and South America | 0 | - | 4.99 | 371,570 |
