Art deco landmark on the outskirts of Washington, D.C.

A suburban museum tells the story of a historic transportation network and even provides rides in antique trolley cars.

All that's left of the quintessential "cabin in the woods."

Mass graves and Victorian monuments mark the history of Memphis in this 19th century cemetery.

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

A pyramid commemorates the birthplace of James Buchanan, the 15th president of the United States

A former mental hospital founded in the 1930s by a eugenicist who advocated for the forced sterilization of patients.

An art instillation for the sake of "raising vibrations."