With only one flight in and out a week, the unfenced runway at this small island's airport transforms into a seaside park for locals and visitors.

This partially buried wreck is one of the most complete of its kind but is only revealed when the sea allows.

Hitler's bleak vision of relaxation still stands as a mostly abandoned 10,000-room resort complex.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

A serene desert oasis speckled with ancient artifacts.

This mountain trail inspired Nietzsche to complete his magnum opus.

This series of rope-style bridges brings visitors into a jungle layer that is usually reserved for birds and monkeys.

The latest in a series of long glass bridges suspended at terrifying heights.

The pretty iron lamp is a reminder of the architecture underneath London's streets.