What else would you call a playground hidden in Alabama's oldest and largest cemetery?

An ancient cave system in Tennessee’s Appalachian foothills converted to a 1,200-person music venue.

Home of an evil witch famous within southern folklore.

Flaunt your karaoke chops at this pitch-perfect dive bar.

This beloved cheeseburger-slinging trailer holds Nashville's oldest beer license.

East Nashville's oldest dive bar will bring you back to life with animal-style bar fare.

Hidden amid a collection of trails is the site of a tragic crash.

The largest cemetery in the American Southeast is a hidden gem near the heart of Atlanta.

An underground magnet for ever-changing street art.

This museum boasts a bucket of teeth and tells the tale of a 20th-century dental circus.

This Philly cemetery is the eternal home of many famous area residents, including Rocky Balboa's wife.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

A rare view of a preserved Victorian science museum.

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

The mummified relics of an American missionary.

A notorious punk house turned co-op.

A massive forgotten storehouse from 1913 on the Brooklyn Waterfront has a spectacular view of Brooklyn.

Holding the most bodies of any cemetery in the United States.

America's oldest Eastern European synagogue provided the immigrants of crowded Lower East Side tenements a space of sanctuary.

Empty, but not abandoned, this cavernous Brooklyn loading dock was once considered the largest individual building in the world.

Check out the underground party scene at the "Burning Man of Brooklyn."

Walk into the 19th century without leaving Brooklyn.

This futuristic airport terminal was abandoned for decades before reopening as a hotel—with a vintage plane of its own parked out back.

Relics given to a Manhattan church to avoid seizure by the Italian government.