This innovative steam machine was no doubt the most famous of the pioneer locomotives.

Banksy's image of a naked man dangling from the window of a sex health clinic.

The Isle of Wight’s “Island Line” serviced by former London Underground trains from the 1930s.

Manchester's abandoned train depot lingers in a post-industrial purgatory.

The abandoned funicular tunnel was a secret base for the BBC during World War II.

The National Railway Museum in York is the largest railway museum in the world, attracting almost 1 million visitors per year.

The elegant structure of this 19th century railroad bridge creates an illusion of infinity.

The majority of the museum's large collection is held in a storage space open to the public a few times a year.

America's first serial killer rests in anonymity.

Collection of trolley cars in the woods represent one man's attempt to preserve transportation history.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

World's first "penitentiary," meant to be humane, drove men insane.

The one-time office of the architectural firm that ushered in the Gilded Age is now a Club Monaco.

This abandoned subway station can still be seen on regular commuter trips.

Try not to get slimed in Tribeca.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

Several times a year, during low tide, two pairs of historic train tracks are revealed on this New Jersey beach.

Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.

A collection of outdoor art by renowned muralist Robert Dafford depicts the history of a flooded city.

Memorial to one of the most fatal fires in both circus and U.S. history.

An extraordinary final resting place full of oversized art, amazing statues, and dead celebrities.

A tribute to the life and work of the beloved "Peanuts" cartoonist.

The show's fictional Korean medical camp was created in the Santa Monica hills.