This music room rocks. Hidden 333 feet underground, inside one of Tennessee’s largest caves, the venue’s exceptional acoustics are courtesy of the sound-absorbing stones that serve as its walls. The space can fit some 700 people and has hosted musicians of all stripes. (Headliners have included Brandi Carlile, Widespread Panic, and the SteelDrivers with Chris Stapleton.) A massive chandelier, originally from the Loew’s Metropolitan Theater in New York, hangs from the ceiling. Weighing in at three-quarters of a ton, it contains 10,000 hand-cut Austrian crystals, in addition to red, white, and blue light bulbs. (Tip: The gift shop sells discarded bulbs for $1 each; they make great souvenirs.) Concerts are held about once a month, but you don’t have to wait for a show to go: Take a guided tour to see the cave’s natural formations, including stalagmites and stalactites, a “never-ending” waterfall, and a pool with albino crayfish. Discovered in 1810 by land surveyor Aaron Higgenbotham, the cave was the site of a saltpeter mining operation during the War of 1812 and the Civil War, providing the key ingredient in the manufacture of gunpowder. Since 1956, it’s been open to the public and is now recognized as a U.S. National Natural Landmark. –Dana Ford
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