This trio of Australian rock spires may have inspired aboriginal legend or just modern tourism.

A clear example of the process of erosion in action.

The labyrinthine storm tunnels beneath the city of Melbourne are ruled by a band of urban explorers.

Built over an abandoned train yard, this hidden gem is full of winding paths and offers gorgeous views of Sydney Harbour.

The only pollutant in the clear blue water is sunscreen.

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

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.

Australian Lake set aglow by Noctiluca Scintillans.

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

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

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

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

An Australian lake whose pink hue defies scientific explanation.

An abandoned railroad tunnel is now filled with bioluminescent bugs.

This unique abacus hanging in the Technical University of Munich actually tells the time.

Medieval ruins on a tiny island amid a flooded lake offer romantic respite to lovers seeking privacy.

This tremendous timepiece was once the largest cuckoo clock in the world.

This natural "sea of stones" was once used by the Romans as a quarry.

Germany has its very own Centralia, whose spark remains attributed to "spontaneous combustion."

The oldest trees in Northern Germany.

One of the most well-known city festivals in the world.

Now overgrown, these anti-tank barriers from World War II are sometimes called "dragon's teeth."

A museum honoring Germany’s cucumber mecca offers a great dill of gherkin history.