A small, but award-winning beach known for its literally spotless reputation.

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

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

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

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

An abandoned railroad tunnel is now filled with bioluminescent bugs.

Australian Lake set aglow by Noctiluca Scintillans.

An Australian lake whose pink hue defies scientific explanation.

An elevator into the Baltic Sea.

No need to strap in for a "ride" on this walkable roller coaster.

This historic stone bridge has an entire neighborhood clinging to its sides.

A stairway to heaven, or to nowhere at all.

This "floating railway" is one of the world's oldest monorail systems.

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

Ruins of a German Castle on top of a towering stone pillar.

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

The fairy tale castle of the "fairy-tale king."

An eerie, derelict amusement park in Berlin.

An ingenious solution to a tricky engineering problem, this spiraling bridge takes drivers for a dizzying spin.

Turn around and stick your head between your legs for the best view of this tree-covered sandbar.

Though technically an illegal structure, this eclectic DIY apartment complex is beloved by its residents.

An eerie maze of industrial factories looks like something out of a dystopian sci-fi.

A network of sandy streets lined with verdant fukugi trees weaves throughout this tiny seaside town.

450 dead and frozen fish, proudly on display in Japan.