Centuries-old bridges grown from tangled roots.

Thousands of exquisitely carved stone water storage wells, hundreds of stone steps fill this exquisite medieval stepwell.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

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

An isolated dive site teeming with cnidarians.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

The real life Hobbiton, this sheep farm has been forever transformed since being built for The Hobbit film series.

A swing to dangle you off the very edge.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

Mother Nature outdoes herself with this stunningly beautiful set of caves carved into marble.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

Rippling sand dunes frozen in the Arizona rock.

A steaming, boiling hellscape sources Hokkaido's thermal baths.

Steaming blood-red hot spring from hell.

Once the most densely populated place in the world, this island is now a ghost town.

Hot springs monkey spa in the middle of Hell's Valley.