Ornate and macabre headstone in one of the country's oldest cemeteries.

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

This decrepit abandoned building is made all the more eerie by its dark history.

Unlike other abandoned asylums this empty institution welcomes visitors, just don't go in the buildings.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

This historic Victorian mansion is allegedly so haunted that a signed waiver is required to enter.

On top of Gibbet Hill lie the ruins of a lavish turn-of-the-century estate that never quite came to be.

The phrase "the shot heard around the world" was coined after a skirmish at this bridge.

Once an integral part of Native American life, very few of these communal New England stones have survived to the present day.

A historic bridge no one is allowed to cross.

A rock outcropping left by a glacier that made itself useful throughout the centuries.

The pleasant woodland cemetery that has inspired more than its fair share of wild legends.

This boulder with a 200-word legal dedication to God has remained hidden in the woods for over 150 years.

This miniature feudal castle was built on a whim to honor a US Navy pioneer.

This little-known rival to the Library of Congress houses one of the largest collections of pre-1876 American books, newspapers, and manuscripts.

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

The notorious pirate William Kidd might have buried his treasure around this local pond.

A home built and settled by a refugee of the Salem Witch Trials.

Small caves once used as a hiding place for some of those accused during the Salem Witch Trials.

A basement full of treasures lies beneath this inn that has worn many hats throughout its 140+ years.

This serene oasis in an affluent Los Angeles neighborhood holds some of Gandhi's ashes and got Elvis into Eastern Philosophy.

World War II-era Nazi compound nestled in the Santa Monica hills.

Small museum packed with artifacts recovered by the man rumored to be the real-life inspiration for Indiana Jones.

The ruins of the castle that chemicals built.