San Francisco Bay's ghost town.

A garden oasis filled with flowers mentioned in the works of William Shakespeare.

A speakeasy takes on Chicago's drinking culture.

Experiencing Guatemala's sensory-exploding church is a blunt reminder of European influence.

One of the world’s most colorful cemeteries, where each pigment is symbolic.

An opal mining town in the middle of Australia where people live, worship, and shop underground.

The tallest sea cliffs on the Southern Hemisphere are a climber's worst nightmare.

This extraordinary geological oddity resembles human-made pavement.

The only pollutant in the clear blue water is sunscreen.

A massive stairway that almost wasn't leads to one of Australia's most scenic vistas.

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

A collection of outdoor mystical statues paying homage to indigenous Australians and ecological stewardship.

A castle hand-built by a Spanish dreamer in the Australian tropical jungle.

Nature is leading a successful mutiny on this century-old freighter.

Once the path of a railway tunnel, now home to thousands of glowing insects.

Australian Lake set aglow by Noctiluca Scintillans.

An abandoned railroad tunnel is now filled with bioluminescent bugs.

Someone loved this song enough to carve all of its lyrics onto a tree trunk in a Berlin park.

Gardens representing parts of Asia, Europe, and the Mid East are tucked away among the Soviet-style buildings in East Berlin.

A wunderkammer of mysterious objects and stories.

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

A slice of central Asia in the middle of Berlin.

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.