| WWII Figures by Picture | 0 | - | 4.89 | 66,019 |
| Countries in World War I | 0 | - | 4.88 | 228,775 |
| WWII Geography | 0 | - | 4.81 | 120,772 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,747 |
| Modern-Day Axis-Occupied Countries of WWII on a Map | 0 | - | 4.99 | 86,350 |
| WWII Decoder | 0 | - | 4.41 | 53,732 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 55,655 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 78,182 |
| Countries in World War II | 0 | - | 4.54 | 916,883 |
| WWII for Dummies | 0 | - | 4.78 | 105,394 |
| WWI... or WWII? | 0 | - | 4.85 | 142,985 |
| World Leaders of the World Wars | 0 | - | 4.36 | 37,976 |
| Military History Vocabulary | 0 | - | 4.91 | 67,503 |
| Important Cities in WWII | 0 | - | 4.42 | 93,741 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,427 |
| Empires by Maps | 0 | - | 4.98 | 121,418 |
| Name the English Monarchs | 0 | - | 4.91 | 505,197 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,235 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,810 |
| WWII First Names | 0 | - | 4.44 | 41,917 |
| WWII Movies by Plot | 0 | - | 4.21 | 27,137 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 275,702 |
| Countries with NO Military | 0 | - | 4.97 | 62,922 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 290,284 |
| Former Flags | 0 | - | 4.97 | 108,268 |
| All World Leaders 2026 | 0 | - | 4.95 | 20,824 |
| Cities Bombed During WWII | 0 | - | 4.09 | 30,251 |
| Countries by Percent WWII Deaths | 0 | - | 4.07 | 30,136 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,967 |
| Years in History by Picture | 0 | - | 4.44 | 35,687 |
| Battle to Country | 0 | - | 4.91 | 53,734 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,544 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 650,468 |
| Name that Greek Letter | 0 | - | 4.93 | 324,603 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,897 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,863 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 338,671 |
| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,688 |
| The Trojan War | 0 | - | 4.83 | 39,922 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,631 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,064 |
| The American Civil War | 0 | - | 4.62 | 52,574 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,452 |
| Roman Emperors | 0 | - | 4.95 | 120,822 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,083 |
| British History A-Z #1 | 0 | - | 4.45 | 46,893 |
| Name that Historical Figure #2 | 0 | - | 4.42 | 285,550 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 108,260 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.51 | 51,076 |
| "Second Best" History Edition | 0 | - | 4.94 | 63,786 |
| World Leaders of the Cold War | 0 | - | 4.27 | 25,398 |
| Famous Dictators #1 | 0 | - | 4.69 | 200,365 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,649 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,701 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,900 |
| History by Picture - A | 0 | - | 4.26 | 46,037 |
| History by Picture - B | 0 | - | 4.40 | 49,218 |
| History by Picture - C | 0 | - | 4.36 | 54,745 |
| History by Picture - F | 0 | - | 4.35 | 38,094 |
| History by Picture - G | 0 | - | 4.40 | 42,336 |
| History by Picture - D | 0 | - | 4.29 | 44,544 |
| History by Picture - E | 0 | - | 4.25 | 44,130 |
| History by Picture - H | 0 | - | 4.37 | 36,986 |
| History by Picture - K | 0 | - | 4.35 | 33,525 |
| History by Picture - M | 0 | - | 4.17 | 36,305 |
| History by Picture - N | 0 | - | 4.40 | 41,446 |
| History by Picture - O | 0 | - | 4.39 | 36,474 |
| History by Picture - T | 0 | - | 4.20 | 33,465 |
| English Royal Consorts | 0 | - | 4.38 | 37,473 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,575 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,399 |
| Historical Rulers #2 | 0 | - | 4.27 | 47,650 |
| Historical Rulers #1 | 0 | - | 4.34 | 119,178 |
| Popular Royal Names | 0 | - | 4.27 | 125,227 |
| Words for Leaders | 0 | - | 4.77 | 258,490 |
| World Leaders Quiz #1 | 0 | - | 4.12 | 110,247 |
| World Leaders Quiz #2 | 0 | - | 4.01 | 35,999 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,725 |
| First Names of Painters | 0 | - | 4.43 | 59,981 |
| Ultimate 20th Century History Quiz | 0 | - | 4.87 | 53,995 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 94,284 |
| Communist Countries in History | 0 | - | 4.63 | 497,372 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,526 |
| Roman History by Picture | 0 | - | 4.46 | 26,545 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,933 |
| German History A-Z | 0 | - | 4.49 | 24,799 |
| Name that Historical Figure #3 | 0 | - | 4.36 | 240,240 |
| Name that Historical Figure #4 | 0 | - | 4.29 | 159,752 |
| Name that Historical Figure #6 | 0 | - | 4.26 | 93,810 |
| All Country Flags of the World | 0 | - | 5.00 | 3,697,102 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 59,072 |
| A-Z Cities by Pictures | 0 | - | 4.56 | 44,013 |
| Countries with U.S. Troops | 0 | - | 4.38 | 132,304 |
| Countries With the Largest Air Forces | 0 | - | 4.47 | 51,558 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,393 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,139 |
| Metals of Antiquity | 0 | - | 4.95 | 93,760 |
| History of The Netherlands | 0 | - | 4.46 | 17,523 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,984 |
| History: What Came First? #1 | 0 | - | 4.87 | 105,723 |
| History: What Came First? #2 | 0 | - | 4.81 | 79,901 |
| Trace the Route of Ibn Battuta on a Map | 0 | - | 4.99 | 22,711 |
| History - Did They Have It? | 0 | - | 4.84 | 62,101 |
| UN Secretaries-General | 0 | - | 4.40 | 7,834 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,675 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 709,461 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,124 |
| WWII True or False? | 0 | - | 4.56 | 57,828 |
| Women in History by Picture | 0 | - | 4.25 | 25,993 |
| Ancient Roman Trivia #2 | 0 | - | 4.60 | 43,989 |
| Geography of the Roman Empire | 0 | - | 4.56 | 52,144 |
| Roman Names for Places | 0 | - | 4.62 | 58,596 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,779 |
| Countries that Have Won the Most Battles | 0 | - | 4.01 | 39,711 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,551 |
| History by Picture - I | 0 | - | 4.24 | 26,379 |
| History by Picture - J | 0 | - | 4.18 | 26,870 |
| History by Picture - L | 0 | - | 4.18 | 30,933 |
| History by Picture - P | 0 | - | 4.08 | 25,415 |
| History by Picture - Q | 0 | - | 4.03 | 22,203 |
| History by Picture - R | 0 | - | 4.13 | 26,988 |
| History by Picture - S | 0 | - | 4.14 | 27,919 |
| History by Picture - U | 0 | - | 4.25 | 25,265 |
| History by Picture - V | 0 | - | 4.31 | 25,244 |
| History by Picture - W | 0 | - | 4.01 | 21,765 |
| Years in History #1 - Multiple Choice | 0 | - | 4.82 | 70,509 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,264 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,045 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.94 | 41,193 |
| All Modern-Day Countries Ever Controlled by Arab People with a Map | 0 | - | 4.98 | 55,585 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,825 |
| British Royal Titles | 0 | - | 4.18 | 19,990 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,548 |
| British History True or False #1 | 0 | - | 4.55 | 37,476 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 23,518 |
| French History A-Z | 0 | - | 4.27 | 24,953 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,435 |
| Countries by Road Signs | 0 | - | 4.98 | 54,208 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,919 |
| Flags with Crescents | 0 | - | 4.98 | 170,844 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,542,957 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,095,733 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 735,412 |
| Country Flag Trivia | 0 | - | 4.81 | 57,709 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,537 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 78,114 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 88,211 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,708 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,736 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 53,297 |
| National Football Team Logos | 0 | - | 4.85 | 181,298 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 149,376 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,931 |
| NATO Countries | 0 | - | 4.98 | 282,501 |
| EU Countries Quiz | 0 | - | 4.99 | 276,713 |
| Top Five Countries by Religion | 0 | - | 4.93 | 172,795 |
| 7 Deadly Sins | 0 | - | 4.88 | 402,532 |
| Books of the Protestant Bible | 0 | - | 4.84 | 211,307 |
| Majority Muslim Countries | 0 | - | 4.98 | 376,617 |
| Name a Valid Answer - British History | 0 | - | 4.57 | 15,212 |
| Influential Women in History | 0 | - | 4.42 | 36,206 |
| Cradles of Civilization | 0 | - | 4.46 | 40,161 |
| Russian History A-Z | 0 | - | 4.35 | 32,050 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,208 |
| Materials From History #1 | 0 | - | 4.56 | 51,940 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,326 |
| Historical Countries by Ruler | 0 | - | 4.48 | 49,055 |
| Historic Orient Express Routes Map | 0 | - | 5.00 | 53,684 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.15 | 63,370 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,802 |
| Former Capitals | 0 | - | 4.88 | 71,597 |
| Flags of WW1 | 0 | - | 4.60 | 38,593 |
| Cold War Decoder | 0 | - | 4.83 | 52,528 |
| Name a Valid Year in History | 0 | - | 4.93 | 67,697 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 146,385 |
| Famous Explorers | 0 | - | 4.58 | 36,289 |
| Famous Empires by Description | 0 | - | 4.73 | 118,840 |
| Answers by Time Period | 0 | - | 4.64 | 55,785 |
| Political Quotes | 0 | - | 4.17 | 19,933 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,231 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,552 |
| The Life of King David | 0 | - | 4.37 | 14,139 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 25,158 |
| All Modern-Day Countries Ever Controlled by the Seljuks | 0 | - | 4.92 | 28,634 |
| Trace the Route of Marco Polo on a Map | 0 | - | 5.00 | 42,485 |
| Countries Visited by Christopher Columbus | 0 | - | 4.85 | 22,120 |
| European History for Dummies | 0 | - | 4.83 | 90,223 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,966 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,902 |
| Animals in British History | 0 | - | 4.43 | 26,065 |
| Kings of France Quiz | 0 | - | 4.20 | 32,867 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,563 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,149 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,144 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,074 |
| Famous Canadians by Picture | 0 | - | 4.39 | 49,467 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,253,156 |
| Flags of Asia Quiz | 0 | - | 4.99 | 617,945 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,707 |
| Flags of Africa Quiz | 0 | - | 5.00 | 475,443 |
