Massive puppet-automaton machines created by French artist collective Machines de l’Ile.

An abandoned Art Deco hotel nestled on the side of a wooded mountain.

Climb down into the largest sinkhole in Qatar.

The private clubhouse for the members of the Academy of Magical Arts.

An otherworldly alpine pasture with its own unique microculture that recalls Middle Earth.

Feast your eyes upon hundreds of Nepal's native butterflies and moths.

A perfectly preserved abandoned criminal asylum in South Australia.

A science fiction-inspired apartment building designed by a famous Spanish architect.

Moss and stone turn this waterfall into an otherworldly liquid veil.

Underground tunnels once home to crime are now back open to the public.

The mile-long pier stretches from a ruined fortress out into the Baltic.

Have fun at the world's first Buddhist waterslide park.

Vietnam's feral abandoned water park offers access to a post-apocalyptic funscape, now with fewer crocodiles.

World's largest cave was only discovered in 1991, and now offers tours to the public.

This truly palatial work of Communist-era architecture now sits crumbling on a Croatian beach.

The medieval network of canals hidden underneath the city is opened to explorers each year.

A remote horde of architectural treasures fit for Indiana Jones.

An oasis of calm amid the chaos of the boardwalk, the museum traces the heritage of this beloved beachside amusement park.

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

Haven for steampunks.

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

In the middle of downtown Brooklyn lies a 165 year old secret hidden right below the surface (closed to the public indefinitely).

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

A secluded natural oasis hidden deep along a rainforest trail.