Though strikingly beautiful, Seattle's other railway station is now largely forgotten.

This private residence was the template for one of the most beloved television homes of all time.

These Pre-Columbian petroglyphs contain representations of birds, deer, hunters, and even some early Native flute players.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

A tribute to Ponce de Leon's supposed quest for eternal youth.

An obscure waterfall that looks like something out of a fantasy novel.

Legends surround this jagged rock formation in the New Mexico desert.

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

Her final resting place was intended to be modest and private, but the power of her popularity continues to draw visitors.

A multi-storied adobe complex has been inhabited for more than a thousand years.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

This fast-food outlet is the only space and UFO-themed McDonalds in the world.

This spectacular track has run continuously since 1882.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

These aggressively sustainable art homes look like something out of 1970's science fiction.

This former coal gasification plant found a curious second life as a popular public park.

One of the oldest living oak trees in the Southeast.

The longest living non-clonal organisms on Earth.

The now-abandoned tunnels were built for the transcontinental railroad on the route where the first wagon train entered California.

A wall of chewing gum moonlights as collective art.

A popular swimming hole that hides one of America's most deadly diving spots.

An inconspicuous footbridge beloved by San Diego locals.

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.