A huge musical instrument played by the ocean.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

The only diamond mine in the world where you can keep what you find.

Some of the clearest water anywhere in the world.

This quirky collection is an interactive exhibit crammed with creative contraptions and tinkered-with toys.

A lakeside garden in the Southern Alps full of whimsical artwork and thousands of beautiful flowers.

An eerily charming collection of salvaged buildings and curios grown out of a family scrap business.

The UFO capital of Australia is the outback’s answer to Roswell.

Australia's largest collection of rare and bizarre insects.

Woven tree art gives this towering Australian woodland a touch of mystical whimsy.

Taxidermy of a famous hippo who spent three years walking over a thousand miles across South Africa.

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

This bridge is embedded with a giant steel dragon that breathes fire from its mouth.

Once America’s most beautiful army base, this abandoned military fort on the coast of Monterey Bay has been left to the elements.

This eccentric cave dwelling is bizarre even by the standards of a subterranean town.

No one seems to know who suffered the disappointment at this particular place.

A series of eerie metal stick figures are spread out over four square miles on the bed of a huge salt lake in the Australian Outback.

An abandoned marine theme park has created a difficult experiment in dolphin rewilding.

The world's "leaniest" tower encourages you to test the gravity of its situation.

The oldest known European structures in Australia are the remnants of a story filled with mutiny, murder, jealousy and greed.

A micronation of epic proportions.