An abandoned mine now resembles a post-apocalyptic landscape of derelict buildings and blood-red pools of water.

An early work of the architect Álvaro Siza Vieira, these swimming pools blend into the beach.

A garden in Lisbon filled with giant porcelain creatures.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

This charming candle shop has been in business since 1789.

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

Houses are tucked between, on, and underneath giant boulders.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

Nursery with extensive collection of flesh-eating plants operated by the author of "The Savage Garden."

Built by the inventor of the radio, this abandoned hotel has housed early radio employees, military men, and a dangerous cult.

Another of California's unused Cold War missile defense complexes has become a graffiti gallery.

World's largest collection of serial killer artwork and other macabre exhibits.

A prehistoric landscape hidden in the cliffs of Maha'ulepu.

This former luxury resort in Kaua'i is now an abandoned relic.

The old Niles Canyon Aqueduct in the San Francisco Bay Area is a bemusing and secret trail through nature for wayward travelers.

Once the largest winery in the world, this castle-like building now sits abandoned on the San Pablo/San Francisco Bay shore.

This infamous prison has a store where you can buy goods crafted by incarcerated people.

Storyville was New Orleans' historic red light district and hotbed of jazz music, sometimes referred to simply as "The District."

A 200-year-old building in the French Quarter that was to be Napoleon's home in the New World.

Despite the ever pressing encroachment of urban sprawl this grand New Orleans manse still stands.

This historic "City of the Dead" lies prominently in the center of New Orleans' famous Garden District.

The curiosities and wonders of pharmacy in a delightful historic building.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.