Every autumn, this hillside is ablaze with red summer cypress.

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

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

The Yonaguni Monument, a natural formation or the Japanese Atlantis?

A tunnel dug through the side of a mountain by hand provides convenient yet death-defying access to a small village in China.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

The oldest (maybe) swimming pool in Iceland is a stunning oasis built into the side of a lush hill.

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

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

The highest monastery in the world operates a tiny guesthouse with doors open to all.

This Tibetan monastery has survived multiple attacks and is also a sky burial site.

The small cliffside monastery known as the Tiger's Nest is said to be the meditation site of an eighth-century Buddhist master.

The mysterious round rocks of Schooner Gulch.

The second-longest continuous wall on the planet protects a hidden secret in the deserts of India.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

An ultra-modern diversity park in Denmark has turned an entire city block electric pink.

Copenhagen's celebrated theme park and gardens.

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

A natural gas leak provides a flickering flame beneath a waterfall.

Hidden in a secluded Greek cove is a pristine beach marred only by the rusting smuggler's hulk stranded on its shores.

This "floating island" plateau sits 7,671 feet above the forest floor.

Folklore says this medieval fortress was plopped atop a portal to hell to trap the demons below.

World's strongest whirlpool.