This strategic isle was once swapped between empires and almost entirely destroyed in a bomb explosion.

Every fall this lake mysteriously drains, like a bathtub with the plug pulled out.

Roadside tribute to a staple of eastern European cuisine.

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

A stray meteor left this picturesque hole in the Australian outback.

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

This abandoned NASA launch site is now a memorial to a trio of astronauts who were killed there.

The largest dinosaurs in the world, kissing above the highway.

Not one, not two, but three natural bridges remain in this captivating spot post-sinkhole.

A sacred mountaintop temple offers a fine cup of tea to visitors who can survive the journey.

The giant Siberian crater known locally as the "doorway to the underworld" is expanding every year.

The coldest city in the world.

Thanks to this small string of islands World War II still hasn't officially ended between Russia and Japan.

The world's second-largest excavated hole.

In oil-rich Azerbaijan, people bathe in the black stuff.

Mysterious hillside with a continuously burning natural fire.

This series of Armenian caves held the oldest brain, shoe, and winery in the world.

The most visited pilgrimage site in Armenia once held a saint in a pit for 13 years.

Giant stone letters dedicated to the founder of Armenia's alphabet.

Unusual building appears to be haphazardly built from randomly piled bricks.

The palace of the King of Kings, burned by Alexander the Great.

Putrefaction plateaus in Iran, where the dead were sent for decontamination before going to their final resting place.

The tallest stationary dunes on Earth also happen to sing.

Enormous statue of the Emperor of the Mongols.