Open since 1938, this diner has kept its fountain, malt machine, and all the gum that greasers left beneath its counter.

In a 345-million-year-old cave that's 200 feet underground, dinner awaits.

Rippling sand dunes frozen in the Arizona rock.

The fictional star of "Breaking Bad" is memorialized with a real-life gravestone in his hometown.

A frozen oasis lies beneath the scorching New Mexico desert.

The symbol was surreptitiously built into the river bank by German prisoners of war.

This highest peak in New Mexico is named after an explorer who had a habit of lending his monicker to peaks.

The 7,000-year-old calcium carbonate formation creates a magnificent natural bridge.

A unique geological area spiked with wind-carved rocks that resemble teepees.

These ruins of a pre-Columbian cliff village are among the most beautiful and well preserved in New Mexico.

It may take some time to locate, but it's sure to warm even a heart of stone.

The small cave that housed Tennessee's "first citizen."

This defunct, fortress-like prison has been the setting for several movies.

This museum chronicles the history of a leprosy quarantine hospital that then became a refuge.

The crumbling ruins of this southern American fort have survived storms, war, and cults.

A swamp and garden tour featuring local wildlife and exotic botanical specimens from around the world.

For 150 years one family has been producing the iconic hot sauce on a bayou island made of salt.

A prime example of New Orleans' unique architecture these early 20th century homes were built to look like steamboats.

This abandoned Civil War fortress is slowly being swallowed by the waters of Lake Borgne.

A 200-year-old building in the French Quarter that was to be Napoleon's home in the New World.

The curiosities and wonders of pharmacy in a delightful historic building.

The highest point in Alabama was almost completely deforested, but is now home to protected towers and trees.

148 feet long and in the middle of a verdant forest.

The remains of an idyllic small town built for the film 'Big Fish' still stand around a rundown main street.