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

Towering basalt columns, a creation of fire and ice.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

Only intact Ichthyosaur skeleton in the United States.

A surviving remnant of the thick ice mass that once mantled most of Western Canada's mountains.

Few other hotels can rival the grandeur of the Castle in the Rockies.

The fossilized remains of ancient California redwoods.

A trash dump made beautiful by nature's power.

The self-made house sculpture of an outsider artist who named himself "Chief Rolling Thunder."

Temporary Burning Man sculpture made of two 18-wheelers.

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

Commonly referred to as the most photographed Victorian home in the United States.

Local legend has it that an old, decaying staircase outside this cemetery is haunted by dozens of ghosts.

Sleep snuggled in a sphere suspended atop the forest canopy of Vancouver Island.

Trails through lava-carved tube-caves display sparkling bacteria and a rich history.

Historic psychiatric asylum and most-filmed location in the Great White North.

Rustic natural hot springs in the deciduous rain forest.

Stroll through a wonderland of stupendous moss-covered trees.

Cave carved out of a huge snow drift collapsed killing one and injuring five in July 2015.

The longest continuous lava tube in Oregon.

Beyond being incredibly fun, not much can be said about the Hole with certitude.

Home to the only outdoor municipal elevator in the United States.

World's only nuclear reactor operated by liberal arts undergraduates.