Three and a half miles of cliffs, rocky beaches, Gilded Age mansions and 40 Steps to nowhere in particular.

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

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

The filming location of a shark attack in Steven Spielberg’s famous shark movie.

Artifacts of whaling, with both its perils and adventure, are housed in this museum in a former candle factory.

Ice cream stand, snack bar, and time capsule of milk conveyance.

No one messes with the Massachusetts sacred cod, not this time...

The first bell ever cast in Boston was cast by Paul Revere...and sounded terrible.

A plaque memorializes the Boston location of one of the largest nightclub fires in history.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

This ambitious father and son team reigned supreme over the North End, and witches, for many years.

This area was once known for being a lawless haven for rough-and-tumble sailors, earning the maritime-themed nickname "the black sea."

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

The highest peak in the United Kingdom has a history of physics, specters, and a pilgrimage of strange objects.

The ruins of this gorgeous clifftop castle look like something from a fantasy novel.

A church that bred legends, and served as an inspiration for the Da Vinci Code.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

The final resting place of soldiers' loyal canine companions.

A six-ton wedding present for the King of the Scots.

This famous archeological mystery may be an ancient example of movable type.

A minotaur, a labyrinth, and a dubious restoration pull in visitors from around the world.

The ancient latrines of the Greeks, in all their public glory.

Carvings in Turkey's Marble Road may have directed ancient Romans to a hidden brothel.

The alleged house of the Virgin Mary is tucked away in a park and nature preserve on Mt. Koressos in Turkey and is holy to both Catholics and Muslims alike.