The world's largest mineral hot springs is home to a herd of bison, a free public bath house, beautiful mineral formations, and a terrifying swinging bridge.

A roadside statue store in rural Minnesota with quirky displays.

A mural and a few historical markers commemorate Denver's once-thriving Chinatown, which was obliterated in a racist riot.

Ch-Ch-Check out the world's largest hand-painted 3D mural.

A menagerie of concrete animals brought together from across New York City's parks.

This three-story Victorian mansion is now home to the National Park Service’s Historic Preservation Training Center headquarters.

The ruins of a creative scholar's fantastical unfinished sanctuary act as his massive gravestone.

Despite being made of a seashell mortar, the crumbling remains of this historic Florida mill are still standing.

The abandoned bathhouse is all that remains of the hot springs considered Florida's original tourist attraction.

Strange beasts lurking in a garden are all that remain of a quirky, short-lived theme park.

A beautiful combination of living flora with preserved bones covers the shelves of this shop.

This three-mile concrete levee in Pueblo, Colorado was transformed into the world’s longest painting.

This 19th century jail was mainly used to incarcerate the drunk and disorderly.

The remains of an early 1900s dude ranch that operated until the 1970s.

A prehistoric rock shelter that's literally in someone's backyard.

A seven-story 1920s mausoleum outside Denver houses thousands of remains.

A coal fire has been burning underground here since 1896.

Two creeks flow out of either end of this canyon in opposite directions.

The site of the "Bone Wars" between two rival paleontologists during the dinosaur rush of the 19th century.

It's easy to forget what century it is as you wander this rustic homestead.

Toss a Frisbee through the ruins of this Colorado gold mining town.

Unlike most arches, this geological oddity formed in a volcanic dike.

This grand stone tower was dedicated to a famed American humorist almost by coincidence.

A futuristic hovertrain is parked unceremoniously alongside a nondescript road.