A South African bar inside a hollowed out 6,000-year-old Baobab.

Floating man-made island and upscale restaurant.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

An awe-inspiring mosque in Morocco with one of the tallest minarets in the world.

Extraordinary sculpture garden created by an eccentric English poet.

The shockingly unspoiled Peruvian tomb of the Lord of Sipan was once guarded by a footless warrior.

This serene oasis in an affluent Los Angeles neighborhood holds some of Gandhi's ashes and got Elvis into Eastern Philosophy.

This Netherlands museum holds a gloriously mechanical collection of ornate musical automata.

This hilltop warren of monastic dwellings is the result of centuries worth of Mongol attacks.

Noble beasts perhaps, but not the Emperor's dogs.

Hidden in a secluded Greek cove is a pristine beach marred only by the rusting smuggler's hulk stranded on its shores.

If astronomy had a ghost, it would look like this observatory.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

Two stunning 17th-century libraries and a cabinet of curiosities.

This former steel and coal plant is now a neon-lit industrial fantasia.

This woodland architectural installation acts as a camera obscura for the heavens.

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

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

A tree grown from astronaut seeds which were exposed to cosmic rays.

The home of the morbid art of corpse plastination is open for visitors to view the fascinating, but stomach-churning process.

Siberian whale bones stand as cairns marking location of an ancient butcher yard.

Hundreds of tiny dead butterfly eyes gaze down at diners in this Australian eatery.

Inspired by "The Starry Night" this Dutch bike path turns into a glowing work of art each night.