Art Deco stylings conceal the true nature of this bridge.

I Street Bridge is the heaviest swinging center bridge in the United States.

This 19th century train workshop is a treasure trove of railroad history.

Dentist's hated concrete colossi are now beloved icons of the community.

The tallest bridge in California was constructed for a project that was eventually cancelled.

Boise State's stadium was the first non-green football field in the world.

A small section of Boise, Idaho maintains the unique culture and traditions of the Basque people.

A unique collection of drawings that represent Fremont Native American culture.

Inside this striking glass building, visitors can see thousands of dinosaur fossils in the positions that nature deposited them more than 150 million years ago.

Water flowed out of the town's unusual tree stump fountain in the 1930s, and the well still runs today.

These falls, sometimes called the "Niagara of the West," still put on a good show at the right time of year.

The only bridge in the United States where BASE jumping is legal without a permit year-round.

Where the famed daredevil attempted to launch himself across a canyon in a custom-built rocket.

One of the "twins" in these falls on the Snake River was sacrificed for hydropower generation in the 1930s.

An impressive waterfall nestled in the cliffs of Idaho's Snake River Canyon.

A glimpse into the lives of the the Miwok and Paiute people in Yosemite National Park.

A picturesque example of brute-force engineering conquering nature.

The viewpoint for this attractive, off-the-beaten-path waterfall is reached by a paved, wheelchair-accessible trail.

Despite being a perfectly pleasant place to be, Loyalton can't seem to attract any visitors.

A massive sea stack famous for its appearance in The Goonies.

This controversial depiction of the "Founder of California" looks as though it was sculpted from mashed potatoes.

A burnt orange monolithic dome structure perched on a hillside near Interstate 280.

A pair of pure white felines guard the entrance to a spot of California real estate established as an artist's haven.

This quirky roadside attraction dives into the many theories surrounding North America's most infamous hairy cryptid.