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In this episode of The Atlas Obscura Podcast, we visit Houston, where a gigantic underground chamber that used to be a water source is now an enchanting—and echo-filled—part of the city’s park system.

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 Dylan Thuras and a neighborhood of Atlas Obscura reporters.

Katya Horner/Buffalo Bayou Partnership (Used With Permission)