A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

A natural formation that resembles a camel resting in the New Mexico desert.

The oldest continuously occupied public building in the United States.

This southwest-styled home in Santa Fe claims to be the oldest house in America thanks to an ancient bit of foundation.

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

This innocuous New Mexico storefront was once the secret jump-off spot for Manhattan Project scientists.

These Pre-Columbian petroglyphs contain representations of birds, deer, hunters, and even some early Native flute players.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

Two dozen pinball games hidden away inside a most unlikely location.

This abandoned Victorian-style house was built in 1884.

The longest escalator in the Western Hemisphere takes over three minutes to ride down.

The trials and tribulations of marking Poe’s grave.

The shelves in the back of this thrift store are devoted to saving, not selling, retro tech.

An eerie, decaying ghost town destined to fade into the forest.

A hamlet full of permanent Christmas spirit holds one of the earliest theme parks in the United States.

A diminutive memorial marks the site of a successful assassination by a right-wing death squad in America's capital.

Before Metro, Washington had a robust streetcar network—and you see the remains of this infrastructure if you know where to look.

The story behind the mysterious symbol painted in front of the historic university's famous Rotunda.

It wouldn't be long after purchasing this farm, Brown would lead his siege on Harper's Ferry.

This memorial in the Adirondack wilderness honors the accidental death of a Scottish entrepreneur.

An antique cemetery in New York, this land is home to any number of famed corpses.

The gravestone of the suffragist leader attracted extra visitors during the 2016 election.

The only intersection in America where the buildings on all four corners were built pre-Revolutionary War.

The dairy farm in upstate New York where nearly half a million people gathered for three days of peace and music in 1969.