An unexpected Easter egg lurks in the background of a cherub wall relief at the Breakers mansion.

The oldest still-operating tavern in the United States was once owned by a pirate.

You can spend the night as an honorary lighthouse keeper in this quaint, historic beacon.

This Rhode Island mansion was a stand-in for the exteriors of Collinwood in the original "Dark Shadows" series.

A 19th century library favored by Edgar Allan Poe and H.P. Lovecraft, known by locals as "the Ath."

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

The real life Hobbiton, this sheep farm has been forever transformed since being built for The Hobbit film series.

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.

Macabre astrological automaton clock dating to the late 1400s.

Two stunning 17th-century libraries and a cabinet of curiosities.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

An enormous, inside-out glass globe built in 1935.

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

An artsy hidden staircase leads to breathtaking views of San Francisco.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

This Manhattan museum houses one of the largest collections of Spanish art and manuscripts outside of Spain.

Need to book a room at the Hotel Pennsylvania? Just dial up 6-5000.

This outdoor gallery of graffiti-covered walls pays homage to the past, present, and possible future of street art.

The most unloved grain elevator in Brooklyn was a “Magnificent Mistake.”

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

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