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.

CLASSIC: The Night Witches: How an All-female Soviet Bomb Squad Terrorized Nazi Germany
31:35

Mata Hari: Courtesan Turned WWI Double Agent?
36:53

That Time We Made Backpack Nukes
31:27