Listen and subscribe on Stitcher, Apple Podcasts, Spotify, and all major podcast apps. In this episode of The Atlas Obscura Podcast, historian and author Edda L. Fields-Black tells us the fascinating and action-packed story of one of the most daring spy operations and raids of the entire Civil War—led by Harriet Tubman. 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…