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Season 1 Episode
- Season 1 The Crusades: Crescent & The Cross, Part 1
- Season 1 The Crusades: Crescent & The Cross, Part 2
- Season 1 The Real Face of Jesus
- Season 1 Art of War
- Season 1 Afraid of the Dark
- Season 1 Most Extreme Airports
- Season 1 Third Reich: The Rise
- Season 1 Third Reich: Third Fall
- Season 1 It's Good to be President
- Season 1 Weird Warfare
- Season 1 Jesus: The Lost 40 Days
- Season 1 Scammed
- Season 1 The Stoned Ages
- Season 1 Zombies: A Living History
- Season 1 Engineering Evil: Inside The Holocaust
- Season 1 Pirate Island
- Season 1 Pearl Harbor: 24 Hours After
- Season 1 National History Bee
- Season 1 Titanic At 100- Mystery Solved
- Season 1 9/11: The Days After
- Season 1 WWII from Space
- Season 1 101 Fasts Foods that Changed the World
- Season 1 101 Objects that Changed the World
- Season 1 Invisible
- Season 1 Ultimate WWII Weapons
- Season 1 101 Weapons that Changed the World
- Season 1 The Secret World of Gold
- Season 1 9/11: Relics from the Wreckage
- Season 1 Target Earth
- Season 1 The Definitive Guide to the Mob
History Specials - Season 1 Episode 164 Invisible
0.00 48 minutes As we look at the world around us, we think we're seeing things as they really are. But in fact, our human senses can only perceive less than 1% of what's actually there. The rest is invisible. Every day, unseen rays and waves bombard us.
