Prehistoric park filled with the fossils of dozens of extinct species including Australian megafauna.

This gracefully curving formation looks like a massive wave that was suddenly turned to stone.

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

The unique ecosystem atop an Australian mountain is home to some colorful inhabitants.

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

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

Occult books, tarot, oddities.

Australian Lake set aglow by Noctiluca Scintillans.

An Australian lake whose pink hue defies scientific explanation.

A wunderkammer of exoticism immortalized by Tom Waits.

Hamburgers are intensely proud of their tunnel beneath the river.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

From toys to kettles to scientific instruments, this German museum celebrates the beauty of 20th century design.

The music is over at the Ballhaus Riviera Ballroom, but the ballroom remains in haunting disrepair.

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

This classic restaurant features a gorgeous mirror-clad room.

Fall down the rabbit hole into a surreal journey of human consciousness "from ass to soul."

A surreal museum of extraordinary industrial objects.

Hidden beneath the streets of London is a secret subway that only carried mail.

Surreal riveted sea forts once protected the Kent shores from German attack.

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

Walk into the 19th century without leaving Brooklyn.

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

An enormous dragon scales the walls of this 17-story temple.