How did the Rubik's Cube become a global phenomenon? Where exactly is Waldo? In part one of this series, legendary author and podcaster AJ Jacobs regales the gang with the wide world of Puzzlers, from early human history to the modern day.

Inventors Who Died Due To Their Own Inventions: The Irrational Death of Hippasus
34:48

The Spiritualism Movement Was Utterly Ridiculous, Part Two: Con Artists, Skeptics, and Ghosts
52:36

CLASSIC: Idiomatic for the People II, Part I: What's in a word?
49:54