A basement full of treasures lies beneath this inn that has worn many hats throughout its 140+ years.

Graffiti-covered ruins that were once part of a farm owned by a mental hospital.

The entire history of the U.S. Space Shuttle Program is painted on an enormous roadside water tank.

The state bird of New Mexico, constructed entirely out of garbage.

What once housed a private club catering to Comstock Lode elite is now considered one of the West’s most haunted spaces.

This pristine World War II airfield gives a comprehensive look at atomic development and aviation history.

California's longest-running tourist attraction is a stump.

On Waikīkī Beach, a monument to four extraordinary individuals of dual male and female spirits who brought the healing arts from Tahiti to Hawai'i.

This saltwater swimming pool, which is the last of its kind in the United States, is slowly crumbling within sight of multiple high-end beachside hotels.

A stretch of highway even lonelier than the so-called "Loneliest Road in America."

A mine in the Sierra Nevada that produced nothing but barren quartz.

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

This lighthouse has been guiding shipping into the Golden Gate since before the American Civil War.

The one-time watch house for incoming ships at the Golden Gate now stands abandoned and hidden in trees.

A 300-ship graveyard, with a few still visible at low tide.

A modest reminder of treacherous waters at the Golden Gate.

US-50 in Nevada is known as "the Loneliest Road in America," but this earlier iteration of the route is even lonelier.

The current Eureka County Courthouse replaced an all-wooden structure that had previously been an ice-skating rink.

Rich red almandine gemstones are waiting inside the volcanic rock strewn across this eastern Nevada hillside.

This abandoned, windowless concrete block is one of the strangest buildings in Tulsa.

The collection is housed in an exquisite mansion that makes you feel like you've been transported to an Italian villa.

The original span of a high bridge across the deep Crooked River Gorge has been preserved for pedestrian use.

Beneath the southern end of the Golden Gate Bridge is the “Gibraltar of the West Coast,” a fort built to protect the San Francisco Bay from naval attack.

The second-largest giant sequoia in the world.