Only known mainland rookery of the threatened Stellar sea lion.

A bigger-than-life pun that has become a beacon of altruism.

One of the now-less-hidden floral gems of the "Emerald Necklace."

Giant pinnacles in the sun-scorched lands of Southern Utah have been nicknamed "white ghosts."

One man has installed bathtubs into the Utah desert floor to harness the powers of a natural hot spring.

Graffiti, cars, and religion combine to create this jungle of scrap in the Nevada desert.

A well-preserved Ancestral Puebloan ruin tucked beneath a desert cliff.

The flower-shaped temple in Virginia aims to transcend the boundaries of the world’s religions.

Gnarled canopies of pink and purple wildflowers arch over the trail to the summit.

One of the last free public hot springs is decorated with hippie art.

A Prada store in the West Texas desert that is never open for business.

The old Route 66 town straddling Texas and New Mexico died along with the Main Street of America.

A park full of outsider art, created by college students studying outsider art.

The drama of nature in full effect in this Nevada State Park.

This spectacular track has run continuously since 1882.

A cabin completely covered in coffee mugs, where visitors are welcome to leave one of their own—if they can find an empty nail.

An unoccupied lighthouse encased in layers of ice from the waters of Lake Erie.

Twice a year, visitors can tour the desolate site that birthed the Atomic Age.

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

The unbelievably opulent home built for an infamous newspaperman.

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

An architect in Aspen used psychedelics as his muse while building this mushroom masterpiece.

This large midwestern cavern features impressive rock formations and an underground waterfall.

The longest continuous lava tube in Oregon.