This blowhole is supposedly caused by a trapped monster.

This black shoreline is made up of exploded lava particles.

A beach made of semi-precious green sand on the Big Island of Hawai'i.

This sculpture pays homage to sailors that perished attempting to round Cape Horn.

A bright little alley in La Boca is a part of tango history.

105-foot wide giant metallic flower blooms anew every day in the heart of Buenos Aires.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

Cold storage for agricultural biodiversity.

In the northernmost city in the world, it's illegal to be buried because it’s too cold for bodies to decompose.

These mysterious ancient stone spheres were created by a civilization lost to time and are now mostly lawn ornaments.

An important Mayan religious and trading center dating back to 200 BC.

One of the most extreme deserts in the world, these snow-free valleys harbor life, despite the hostile environment.

Nimrod Polar Expedition base, and home to hundred-year-old frozen whisky.

The best place to send your postcards home from Antarctica.

Fire meets ice at the southernmost volcano on Earth.

Natural time capsule containing an alien ecosystem.

North America's first frozen mummified remains of an ice age steppe bison, the 36,000 year-old mummy named "Blue Babe."

This plaza at the end of the world teems with monumental tributes to a problematic history, and laser discs.

A gorgeous and extensive collaboration between biologists and artists, displaying skeletons and other animal remnants in lifelike poses.

Highly spherical boulders on the shores of New Zealand.

The glacier tucked within a New Zealand rainforest.

One of the world's steepest streets seems to have houses sliding down it.

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

This strange geological landscape erupts with sudden bursts of water.