The world's only teal arches exist in a city that cares more about its aesthetic than an Instagram influencer.

The first Protestant church in Arizona and only Gothic Revival style adobe church in the world.

The world's largest rose bush has literally outgrown the pioneer museum it was planted behind.

An old saloon in the West filled with history, and according to some, a few dozen ghosts.

Instead of faces, these sculptures have barcodes—statements on societal dehumanization.

At this deceptively beautiful beach, nothing is what it seems.

The ghostly remains of an accidental sea.

Version of the French Riviera destroyed by the sea.

Once the product of an inexplicable gold strike, this ghost town is now home to one man and his love of classic machines.

On the outskirts of a reborn ghost town, a decaying post office remembers the bad old days.

Inside this store, a mysterious statue draws visitors from the world over.

A Wild West jailhouse that slid down the mountainside.

A working cattle ranch with remarkably well-preserved prehistoric petroglyphs and ancient ruins.

Built by the patriotic residents of Boonsboro in a single day.

Enchanting gardens surround a derelict mansion, all hidden in plain sight behind a stone wall.

World's first "penitentiary," meant to be humane, drove men insane.

The first American department store, and home to the largest operating musical instrument in the world.

Huge masonic hall in Philadelphia with lavishly themed rooms.

This elaborate towering structure was once famed for its revolutionary height.

Alexander Hamilton’s creation caused quite a bit of controversy.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

Believed to be the birthplace of the United States Marine Corps.

An Irish Memorial commemorating those who perished due to potato blight.

America's smallest national park site is the former residence of exiled Polish national hero Thaddeus Kosciuszko.