This isn't exactly Bitcoin related but I highly recommend Fall of Civilizations. They make long 2 to 4 hour episodes about how and why historical civilizations rose to prominence and collapsed. I find it fascinating to hear how human empires of the past made similar mistakes to the ones being made today. Listening to these podcasts knowing about Bitcoin really gives you perspective on how lucky we are to be the first humans in history to have access to this beautiful, superior technology.