Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.

New Orleans' famous cemetery, located on the site of a former race track.

This well-preserved Cistercian Abbey in a romantic pastoral setting has inspired artists like the poet Wordsworth.

A quiet, gothic haven nestled between Pittsburgh's Squirrel Hill and Point Breeze neighborhoods.

Possibly the world's only drive-in movie theater with an attached motel.

A mysterious echo seems to defy the laws of acoustics.

This snug medieval lane is one of the narrowest streets in the world.

Politicians, bureaucrats, and military officers gathered in this field near the Capitol to settle their disputes with blood.

This ancient shrine has been rebuilt every 20 years since the eighth century.

The highest point in Belgium is a staircase to nowhere.

This abandoned asylum was once a state of the art facility before devolving into one of the most deadly mental institutions in American history.

American revolutionaries and British soldiers alike are buried here in the fourth-ever cemetery in Boston.

A men’s restroom became a sandwich shop.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

The remains of diamond fever taken over by the desert.

Intensely colorful calcite pools in Southern China.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

An easy to overlook storefront hides some of the most authentic and regionally diverse Chinese food in New York.

This rustic cabin, outfitted with gun slits, was once home to John D. Tewksbury, patriarch of the bloodiest family feud in American history.

This lurid German fountain plots the sad course of marriage from dating to death.

A double agent hid information for the Soviet Union beneath this bridge for more than 20 years.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

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

Abandoned railway line circling the city of Paris.