| 300 | World War I Decoder |
| 298 | Central Powers-Occupied Countries of WWI |
| 289 | Tallest Buildings of the World - Timeline |
| 287 | The Soviet Union- Early 20th Century |
| 284 | Allies of World War I |
| 284 | WWII Tanks - UK |
| 281 | Countries that were in the Warsaw Pact or the Soviet Union |
| 276 | WWII US Airplane Names |
| 276 | Capitals of Former Soviet Countries |
| 274 | Countries with the First Full-Color TV Channels |
| 273 | Nazi in power of Germany |
| 271 | Countries with Decreasing HDI Score (2017-18) |
| 270 | Countries that Administered the Tangier International Zone |
| 268 | Japan Occupation During WWII |
| 268 | Battles of World War One |
| 267 | Balkan Countries - 1900 |
| 261 | Monarchs of WWI |
| 256 | Most Translated Literary Works |
| 250 | Most-Ratified International Treaties |
| 248 | Vehicles of WWII |
| 247 | music trivia: 1964 songs and artists |
| 239 | WW2 Battles by Images |
| 235 | Battle of Stalingrad Quiz |
| 234 | Barbenheimer Characters by Screen Time |
| 235 | Geography and History of the Soviet Union on a Map |
| 234 | Countries of Africa 1914 |
| 228 | Winston Churchill's World War II Speech |
| 226 | Winston Churchill A-Z |
| 223 | WWII Quiz |
| 222 | 10 most devasting bombing camapaigns of WWII |
| 221 | Countries with Highest GDP Growth Rate (2017) |
| 220 | WWII ships |
| 219 | WWII Quiz |
| 218 | Largest Soviet Union Cities |
| 218 | What WWII Ship is Fake? |
| 217 | Bitcoin Quiz 💰 |
| 214 | Countries Winston Churchill visited |
| 207 | Marshals of the Soviet Union |
| 206 | Famous Music Record Labels |
| 202 | WWII Quiz - The Basics |
| 202 | British History Quiz #9 (20th century/modern) |
| 199 | WWII Aicraft by Picture (Hard!) |
| 199 | Asian Modern History |
| 197 | Countries with the Highest Incidence of TB (Tuberculosis) |
| 197 | Battles of WWI (First World War) - Alps & East |
| 197 | Countries that were Part of the United States |
| 196 | Cold War True or False? |
| 194 | Countries that were Never Colonized |
| 193 | Name the major WWII military operations |
| 192 | Countries of Oceania by Independence Date |
| 190 | World War II in the Pacific |
| 189 | WWII 101 |
| 187 | Which Countries? Cold War Edition |
| 184 | African Countries by Mother Countries |
| 182 | Julio-Claudian Family Tree |
| 182 | Countries that Sanctionned the most Russia |
| 180 | Countries with the Most Recent Cases of Polio |
| 176 | British History Quiz #11 (WW2) |
| 176 | Countries that were in WWII |
| 175 | Countries that fought in WWII by Death Toll |
| 173 | Military Operations of WW2 |
| 170 | Countries with the Last Cases of Smallpox |
| 168 | 10 Biggest Cities in Order: WWII Axis Countries |
| 168 | British History Quiz #10 (WWI) |
| 167 | Color the Historical Flags - Soviet Republics Edition |
| 166 | Countries Suffering Most WWII Casualties |
| 164 | Current Communist Countries |
| 160 | Magazines by Cover of First Issue |
| 159 | Most Recent Countries to Recognize Israel |
| 152 | Cold War |
| 148 | Top 10 Former Soviet Republic Average Salaries |
| 147 | Axis-Occupied Countries of WWII |
| 144 | Soviet Cities - Sudden Death |
| 139 | Can you name former countries on the ussr |
| 136 | 20th Century Leaders |
| 135 | UEFA Euro 1988 Final Soviet Union - Netherlands |
| 134 | Flags of Countries of the Soviet Union |
| 129 | Battles of WW2 |
| 126 | Winston Churchill |
| 121 | Famous People of the World Wars |
| 118 | League of Nations Countries |
| 117 | All British Colonies Quiz |
| 113 | Former Communist Countries |
| 111 | Famous People from Post-Soviet States by Picture |
| 108 | Countries of Asia in 1930 |
| 107 | RAF Countries in the Battle of Britain |
| 102 | music trivia: 20th century composers and their music |
| 102 | African Modern History |
| 93 | Winston Churchill Quote Quiz |
| 91 | Warsaw Pact Countries on a Map (1955) |
| 91 | Largest Cities Once in the Empire of Japan |
| 90 | Winston Churchill |
| 90 | Every Soviet City With a Metro System |
| 90 | 1967, 1968, or 1969? |
| 83 | The Only Remaining Soviet Union Country |
| 76 | WWII - Military operations in South and Western Europe |
| 67 | music trivia: 1954 songs and artists |
| 66 | Modern Cities by History (Tile Select) #1 |
| 65 | The Great Depression A-Z |
| 65 | WW2 Knowledge Quiz |
| 62 | World War II in Europe |
| 61 | World War 2 Timeline Blanks |
| 59 | WWII - Military operations in Africa |
| 59 | All wars the United States has been in |
| 59 | Magazines by Picture of First Issue Cover |
| 59 | Order of Victory recipients |
| 59 | Allies in World War 2 |
| 52 | Apollo Space Program Knowledge - Multiple Choice |
| 52 | The former Soviet Union consisted of 15 republics, name them all |
| 52 | Modern Greek History |
| 51 | World War II Terms |
| 50 | Former USSR Countries in Order of Size |
| 49 | Flags of the Axis Powers |
| 49 | A Quiz About Soviet Union |
| 48 | World War II Leaders and Commanders |
| 49 | Soviet Union Decoder |
| 47 | First Countries with a Country Code Top-Level Domain |
| 47 | Music Trivia: 1952-1953 Songs and Artists |
| 45 | Cryptoleaks Involved Countries |
| 42 | January 2025 in Review |
| 43 | World War I Events |
| 37 | Fu-Go Balloon Bomb States and Provinces |
| 36 | World War II in the Mediterranean |
| 35 | Fill-in-the-Map #1 - Prelude to World War One |
| 35 | Flags of the Allied Powers |
| 36 | Axis Leaders of World War II |
| 33 | The Only Australian State or Territory... |
| 32 | World War I Leaders |
| 30 | The Last or Most Recent 5 in Each Category #1 |
| 29 | Former Soviet Union Capitals |
| 29 | World War II Heroes |
| 27 | World War II Technology of War |
| 25 | The Last or Most Recent 5 in Different Categories #2 |
| 18 | Cities Named After Joseph Stalin |
| 18 | Magazines by Cover of First Issue (Click Quiz) |
| 17 | The Opioid Epidemic In the United States |
| 15 | When Was It Built? |
| 5 | Countries of the USSR by Full Name |
| 4 | Anthem of the Soviet Union - Государственный гимн СССР |
