Inside, a narrow tunnel.

Webthis was the highlight of my time in knoxville.

Webdeep in the foothills of the smoky mountains, about 50 miles south of knoxville, sits an american wonder 140 feet below ground.

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Dr bass is an absolute sweetheart and you can tell he genuinely enjoys meeting people.

The Lost Sea: Tennessee's Stunning Subterranean Cave Lake - Unusual Places

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