These seaside shelters once enjoyed by royalty remain a part of local history.

When this test site was abandoned, they didn't even bother to take the rocket with them.

A century-old network of freight tunnels underneath the city's historic business district.

This Central New York ghost town was once a prosperous railroad community.

Once the most densely populated place in the world, this island is now a ghost town.

Where the sleeping monsters of Scotland's oil industry are left to rust.

This old-world mansion with lush gardens is a gem in the heart of Silicon Valley.

Rumored to be the famed pirate's lookout tower, this historic stone structure is now just watching for tourists.

Rusting, graffiti-covered tanks litter the beach of this island, once used by the U.S. military for target practice.

A deteriorating 1990s Girl Scout camp in a beautiful lush park on Lake Ontario.

The Internet Age began with a transmission from this biker bar.

This small shop walked so America could run on Dunkin'.

Abandoned since the 1950s, the streetcar lane beneath the heavily trafficked bridge lays empty and unused.

A mysteriously abandoned campsite in San Angelo State Park.

One of the largest-ever mental hospitals now sits abandoned, surrounded by 25,000 unmarked graves.

In the woods of New Jersey lie the ruins of a munitions village abandoned after World War I and the remnants of a 1920s wooden racetrack.

The old Route 66 town straddling Texas and New Mexico died along with the Main Street of America.

Ship skeletons haunt Baltimore's waterways.

This forgotten building was one of the few Philadelphia-area breweries to survive Prohibition.

An Industrial Revolution-era public work that purified water using nothing but sand.

An eight-sided home built during a brief octagon craze in the 1850s.

One of the world's largest automobile junkyards is a unique landscape of metal and moss.

A remarkable time capsule of American manufacturing deep in Maryland coal country.

A recently abandoned psych ward at the end of Sanatorium Road.