The East Village tenement from the cover of Led Zeppelin’s 1975 album has a tea shop on the ground floor.

The first museum in the United States dedicated entirely to posters.

A charming "tea atelier" hidden away in Greenpoint, Brooklyn.

The famous author's cottage hideaway.

Ride the subways of yesteryear.

This lower Manhattan bar is set up in an old bank vault that rests beneath a skyscraper that hides even more historic splendor.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

This tiny getaway tucked away in an uninhabited Scottish valley isn't your ordinary teahouse.

On the Oregon coast there is a natural hole that seems to be draining the sea.

This massive underground salt mine now holds a sci-fi theme park in its depths.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

In the northernmost city in the world, it's illegal to be buried because it’s too cold for bodies to decompose.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

The lush coastal city of Astoria is riddled with forgotten secret sidewalks.

The largest dinosaur trackway in North America is tucked away among this canyon's ghosts and archaeological gems.

This unique temple complex remains off the typical tourist trail.

Hidden in a secluded Greek cove is a pristine beach marred only by the rusting smuggler's hulk stranded on its shores.

This one-time health resort was used by aristocrats around the world.

An otherworldly alpine pasture with its own unique microculture that recalls Middle Earth.

Hidden amid the tropical forest in the Caribbean Sea are the decaying ruins of the Cocaine King's luxurious island party home.

The doodles of a genius line the walls of a secret room under the Medici Chapel, where they were hidden for nearly 500 years.

From working out of his garage to the James Beard semifinals, one Tucson baker has kept his fan base—and his grains—local.

The eccentric mansion of one the most popular horror authors of modern times.

A submerged archeological park still holds the wonders of a Roman Sodom.