Humanity has adapted to life on the surface. We like sunlight and fresh air -- but do we need it to survive? Check out this HowStuffWorks podcast to learn more about living underground.
Learn more about your ad-choices at https://www.iheartpodcastnetwork.com

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