Overlooking the Colorado Convention Center is this giant sculpture made from thousands of triangles.

A dazzling display of red rocks weathered into spires and hoodoos.

The portrait of a man from Japan who sent weekly letters to a Dutch hotel he never visited.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

A grove of "candelabra redwoods" deep in California's Lost Coast.

This massive redwood tree has a hole in the base big enough to drive through.

A raised boardwalk winds through a thicket of stunted, century-old trees no more than nine feet tall.

Nursery with extensive collection of flesh-eating plants operated by the author of "The Savage Garden."

An abandoned car and strange wooden debris are among the scattered remains of the old sand and gravel quarry.

One man's prolific, decade-long quest to turn trash into artistic treasure.

Where a staggering 747 ships were constructed during World War II.

The mysterious round rocks of Schooner Gulch.

This whimsical seashell-shaped place of worship was designed to blend into its surroundings.

This abandoned boat was left in place thanks to its rotting beauty.

This rare example of a "tidefall" is a spectacular drop from the cliffs down onto the beach.

Centuries of biking history are nestled in the shadow of the birthplace of contemporary mountain biking.

The first life claimed by this record-breaking peak wasn't lost to exposure or a fall but rather lightning.

Millions of years of oxidation make a drive down this winding Death Valley road surprisingly colorful.

Travelers leave tea kettles in a remote part of Death Valley as part of a mysterious, decades-old tradition.

This desert oddity hides in plain sight thanks to a cartographic error and a desert explorer with a punny sense of humor.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

This ramshackle ghost town is comprised of mining-era buildings collected from around the region.

A black and white painted wall creates an optical illusion in the California desert.

A psychedelic labyrinth on the San Francisco bay.