The remnants of a Gilded Age elegance preserved in the middle of a stark modern tower.

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

This nearly endless university hallway is home to a unique sunset known as "MIThenge."

This historic Boston building has gone from personal estate to porn theater and back again.

This Dutch-styled residential building was originally a cocoa company's World's Fair showpiece.

A simple but powerful tribute to the 20 victims of the 1692 witch trials.

This Gothic castle was inspired by Erik the Red's Viking residence at Brattahlid in Greenland.

This cemetery served as the only official burial grounds in Cambridge for nearly 200 years.

A historic bridge no one is allowed to cross.

The oldest continuously-operated inn in the United States, once owned by Henry Ford.

This supermarket is suspended 25 feet above an interstate highway.

This peaceful Massachusetts graveyard was one of the first "garden-style" cemeteries in America.

This headstone-like marker inscribed with three words has been an utter mystery for over a century.

This historic cemetery is filled with markers that look more like candy than was likely intended.

"the sweltering inhabitants of Charleston and New Orleans, of Madras and Bombay and Calcutta, drink at my well . . . The pure Walden water is mingled with the sacred water of the Ganges."

The site of the Andover Witch Hunts, which ended with more witch accusations and arrests than Salem.

The Cadillac Ranch for monster truck aficionados.

A home built with marble tombstones from the graves of 2,200 Union soldiers buried in a Virginia cemetery.

One of the few remaining Rosenwald Schools left in Virginia.

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

Remnants of a storybook amusement park hidden behind a strip mall.

The final resting place of an unidentified revolutionary soldier sits behind a Virginia church.

Once home to seven different roller coasters, Glen Echo has undergone many transformations since its founding in 1891.

The romance of early commercial flight still fills this Art Deco destination.