Dramatic river bend surrounds a natural red-rocked pedestal.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

Most-visited and most-photographed slot canyon in the American Southwest.

Rippling sand dunes frozen in the Arizona rock.

A psychedelic labyrinth on the San Francisco bay.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

Empty, but not abandoned, this cavernous Brooklyn loading dock was once considered the largest individual building in the world.

Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

One of the most remarkable caves in all of Iceland was created by a once raging river of lava.

This volcanic cave lake is essentially hard proof that Iceland is the most magical place on Earth.

A modern Nordic Pompeii on the Icelandic island of Heimaey.

The bright red stripes streaking across the rocks are the star feature at this Icelandic waterfall.

A sulfuric martian landscape that looks far better than it smells.

This mountain fissure hides a secret path to a secluded mossy grotto within the rock itself.

Surrounded by ash fields in Iceland, an impossibly verdant valley looks like something out of a fairytale.

Travel deep inside of Europe's second largest glacier in the world's largest man-made ice cave.

This fairytale-like structure is the last turf church ever constructed in Iceland.

This replica Viking village was created for a film that was never shot and is now open to visitors.

Every summer local children form "pysja patrols" to save young birds that have wandered from their nests.

A winding, blood-red tunnel of hardened lava navigable by foot.

Strange rock formations tower above the river that snakes through this enchanting Icelandic canyon.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

Medicinal spa created with the discharge from a geothermal energy plant.