The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

On the Oregon coast there is a natural hole that seems to be draining the sea.

An exquisite tunnel of cascading flowers.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

Rippling sand dunes frozen in the Arizona rock.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

A psychedelic labyrinth on the San Francisco bay.

Colorado's only true geyser is hidden within the San Juan National Forest.

One woman's UFO-themed campground, complete with self-built energy vortexes, UFO-themed weddings, and magic bushes.

Community owned and operated, this property is home to a diverse set of nudists.

Climb to the top of this spiritual tower, and you'll be rewarded with spectacular views.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

Inside this small museum resides a strange mix of miniature collections passed down over time.

On the edge of the Valles Caldera National Preserve, these rock formations create an eerie landscape.

A warm desert spring holds one of the rarest species on earth.

The 7,000-year-old calcium carbonate formation creates a magnificent natural bridge.

The shattered remnants of a meteor that struck Santa Fe more than a billion years ago.

The winter home of thousands of beautiful snow geese and sandhill cranes.

A one-of-a-kind sundial at the Very Large Array honors a radio astronomy pioneer, incorporating the original piers from his breakthrough radio telescope.

In the middle of a desert subdivision, there is supposedly an impact crater site from Kcymaerxthaereal times.

The U.S. Air Force has an anti-satellite laser weapon.

This innocuous New Mexico storefront was once the secret jump-off spot for Manhattan Project scientists.

This volcano rises like a giant anthill from the plains below, with a road spiraling up to the rim.

Some 2,000 carvings show this rare desert spring has been an oasis for travelers for over a thousand years.