Today on The Gist, we explore a new form of dark tourism: ecotourism. Tom Zoellner’s Kindle single Come See the Mountain tells the story of his visit to the Potosi silver mine in Bolivia. Plus, Megan Hustad explains why TED talks remind her of the tent revival sermons of her youth. She’s the author of How to Be Useful and More Than Conquerors: A Memoir of Lost Arguments. And to end the show, Mike can’t stop spieling about the New York Times’ coverage of the Chicago elections. Today’s sponsor: Stamps.com. Sign up for a no-risk trial and get a $110 bonus offer, when you visit Stamps.com and enter promo code TheGist. Join Slate Plus! Members get bonus segments, exclusive member-only podcasts, and more. Sign up for a free trial today at http://www.slate.com/gistplus.