Hidden in the New Mexico desert southeast of Roswell, nine small deep lakes formed inside sinkholes.

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

Now a city park, this site started as a stage stop, then was a working ranch, and finally became a dude ranch that specialized in letting wannabe divorcees establish Nevada residency.

Mine your own precious stones.

A hidden slot canyon in the southern Nevada desert makes an unexpected oasis and scenic hike.

Built to hold Gold Rush wealth, this building has withstood the test of time.

On October 26, 1963, a 12-kiloton nuclear device was detonated here in granite some 1,211 feet below the ground surface.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

A non-native grove of 241 redwoods in Southern California.

Thousands of pieces of art have been carved into the rock at the site of an ancient volcanic eruption.

As fallout from an irrigation project, a formerly cottonwood-lined stream is now a sandy, desolate, post-apocalyptic channel lined with weathered stumps and tumbleweeds.

Every weekend, people gather here for a brief chance to see their loved ones on the other side of the United States–Mexico border.

The disdain for this dysfunctional dam is reflected in a giant pair of scissors painted on the concrete face.

This rare, carefully curated collection showcases the history of neon inside a grandiose Elks lodge.

If the tunes of antique organs and musical marionettes don't intoxicate you, the draft beer certainly will.

An art deco ice cream shop covered in vintage train station tiles.

One of the oldest active carousels in the country—but it might be missed by all but the keenest-eyed boardwalk strollers.

This building at the south end of the boardwalk was once home to the U.S. Life-Saving Service and the U.S. Coast Guard before being rescued itself.

Old neon signs from the City of Brotherly Love provide a snapshot of the city’s evolution.

Once part of a dam servicing an early 19th century grist mill, the tucked-way falls are a tricky-to-find urban oasis.

A unique museum where guests can rent and operate a locomotive.

Toxic waste disaster that founded the Superfund program.

A 19th-century architectural wonder designed by the "father of the skyscraper."

This unique crypt designed by Frank Lloyd Wright for his longtime friend was not completed in either man's lifetime.