Waterbeds came and went pretty quickly in the United States, but despite their marketing as sex beds, they were actually invented to deliver a great night's sleep. Learn all about these super 70's beds in this classic episode.

Did Mallory Make it to the Top of Everest First?
52:48

The Hindenburg Disaster
50:02

Short Stuff: Did Tippi Hedron start the Vietnamese manicure industry?
12:58