Exploring a Deep Cave and Sponsor Introduction

All over the world, there are unique and breathtaking sounds that you can only hear in one specific place. In this episode, we travel to two of the most astounding sonic wonders in the United States. The first is a hidden sound installation in Times Square that might be the most visited art exhibit on Earth. The second is an enormous organ built right into the rock of an ancient Virginian cave. These stories originally aired on the Atlas Obscura podcast.

Twenty Thousand Hertz is produced by Defacto Sound.

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Episode transcript, music, and credits can be found here: https://www.20k.org/episodes/auralobscura

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