This area was once known for being a lawless haven for rough-and-tumble sailors, earning the maritime-themed nickname "the black sea."

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Rusting away on the edge of New Jersey are the remains of a Cold War missile launch site.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

The restored estate of a wealthy rancher was once at the heart of an unprecedented legal victory.

Pay your respects to departed pets, both celebrity and otherwise.

A strange mishmash of ruins and abandoned structures hint at the park's many lives.

The beloved dining spot stands at the cross-section of Hollywood and the Old West.

The real faces of Venice beach captured on Romanesque columns.

An increasingly eccentric apartment building, topped with winged beasties.

Apartment building was once posh playground to the Hollywood elite.

60 feet of towering steel balances gracefully.

The words of the neighborhood's most famous poets adorn four concrete walls.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

A black and white mural stands out from its psychedelic surroundings.

A lonely Gondola stuck on a traffic circle sits in a spot where it once would have floated down the Grand Canal.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

An Old West film set seen in countless TV shows and movies is open for the public to explore.

A dramatic coastline that’s home to a rare pine tree.

A futuristic-looking beach house built for the owner of a snack food brand.

A blast from the past in central San Diego.

This 19th century wooden span is one of only four retractile bridges in the United States.

The former estate of the Guggenheims, part of the opulent Gold Coast that inspired the Great Gatsby.