A 60-room castle constructed by a horse-racing heir.

A safe space and resource for anything and everything relating to sex and sexuality.

Mysterious stone tower featured in many alternative histories of the New World.

250-year-old farm now features sculptures, a petting zoo and a hippy-bazaar.

A railroad magnate's replica village has become home to a genetic seed bank for rare breeds of livestock.

Abandoned Coast Artillery fort now serves as graffiti canvas and sightseeing vantage point.

This Rhode Island mansion was a stand-in for the exteriors of Collinwood in the original "Dark Shadows" series.

A crumbling stone stable and carriage house are all that remain of a manse that was once filled with Egyptian artifacts.

A virtually untouched "home on the hill" for the flora and fauna of Rhode Island.

Books bound in human skin and H. P. Lovecraft's letters are among a few of the treasures this library has to offer.

The exact whereabouts of this surreal cabinet of curiosities are rarely the same place twice.

Last residence of H.P. Lovecraft featured in his story "The Haunter of the Dark."

This fairy tale-themed amusement park is now abandoned, and childhood metaphors abound.

A 19th century library favored by Edgar Allan Poe and H.P. Lovecraft, known by locals as "the Ath."

Around 160 years ago, this spot marked the location of a wharf along the shores of the Charles River.

A unique music museum housed in a historic Boston theater.

What was once a true peninsula has now been filled in, causing the water to recede and leaving many streetside "waterfronts" and landlocked "islands."

A centuries-old church stands as a testament to Boston's "father of architecture."

Each August, one of the largest religious (and food) celebrations in the country is held in Boston.

Tragedy on Little Brewster Island memorialized.

A more than 260-year-old crypt built on Boston's oldest English burial ground.

One woman’s obsession gave birth to this lovely oddity at the Boston Public Library.

These whimsical works of art tell the story of the city's past and present.

Statue commemorating the use of ether in anesthesia.