A desert ghost town—occupied for only 12 years—was once home to more than 500 silver mines.

This sanguine boulevard was named after a deadly cowboy bar fight.

The oldest lighthouse on America's west coast no longer needs keepers, yet they maintain the site anyhow.

A singular collection of hand-built art deco cars are held in a building with style to match.

The whole of Maine's history with the salty little fish is packed into this tiny coastal museum.

The so-called "Bridge of Thighs" in Palm Springs allows nudists to discreetly cross the road.

This simple highway curve has become a comedic pilgrimage site.

After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

Oddly shaped rock formation, misassociated with a nearby utopian community.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

These aggressively sustainable art homes look like something out of 1970's science fiction.

These gutted monastery ruins still stand proudly in the middle of the Italian countryside.

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

This crumbling Death Valley mining complex was known for its use of giant, 20-mule team wagons.

The official atomic museum of the United States explores the explosive and productive history of a much maligned energy source.

Singing sand that stands as the final remains of an ancient lake.

Detroit’s downtown castle is one of the oldest structures in the city.

Thousands of turbines whir at the origin of North American wind power.

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

Two rocks in a perpetual kiss and one of "the most romantic spot in America."