Listen and subscribe on Stitcher, Apple Podcasts, Spotify, and all major podcast apps. In this episode of The Atlas Obscura Podcast, we visit an old friend who takes us under the streets of Istanbul and into an encounter with Medusa. Our podcast is an audio guide to the world’s wondrous, awe-inspiring, strange places. In under 15 minutes, we’ll take you to an incredible site, and along the way you’ll meet some fascinating people and hear their stories. Join us daily, Monday through Thursday, to explore a new wonder with cofounder…