A 19th-century funicular railway shuttles visitors up this surprising sea cliff to one of the world's largest camera obscuras.

Come for the flowers, stay for the bats!

WWI hospital ship lost in a cyclone turns up on the coast of Fraser Island, where she remains rusted and forgotten.

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

Everything from a plane to your own two feet are needed to reach this jungle resort.

Jumping-off point for a climb up Mt. Everest is the most dangerous airport in the world.

Last stop before the top of the highest peak in the world.

The only tower of an aerial tramway standing over a ski-lift.

Unconventional site where the tracks of Zurich tramcars intersect.

A cablecar-station-turned-revolving restaurant with 360-degree views of the Swiss skyline.

A historic observatory precariously perched at the "Top of Europe."

This fantastical waterfall is hidden in a cave located in a cracked cliff.

Three columns of volcanic rock shoot out of the ocean.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

Iceland's tribute to its thankless civil servants.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

A galaxy of glowworms—larvae of a gnat—hides deep in the belly of these caves.

Largest Kauri tree in New Zealand.

This strange geological landscape erupts with sudden bursts of water.

Major tourist destination known for its bubbling mud-pools and hot thermal springs.

A glacier pocked with ice caves and surrounded by rainforests.

A perfect turquoise lake colored with glacier dust.