Eighty million natural history specimens call this gargantuan museum home.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

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

A treasure trove of rare and fine fabrics from around the world.

Narrowest house in Boston.

This is the house that spite built.

An eccentric inventor's castle home with its own indoor weather system.

A giant Troll lurks under one of Seattle's oldest bridges.

A walk through the historic city center, under the streets of Seattle.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

The Mysterious Witch Bonney, a haunted statue in an old industrial city.

This delicate museum is devoted to the art and industry that once supported Cape Cod's oldest town.

The land is home to swimming ponies and a legendary 18th-century treasure.

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

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

A morbid secret lies hidden within the beautiful walls of the Boston Athenaeum.

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

This massive tea kettle was once a promotional stunt for the Oriental Teashop.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

The tomb of Increase Mather and his son Cotton, influential colonial ministers obsessed with the occult.