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

At this former Prohibition speakeasy, electric birds signaled the arrival of hooch.

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

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

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

Legend says train robbers stashed their gold within the depths of this unusual cave.

Brass cobblestones mark the places where individual Holocaust victims were taken from their homes.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

Touching mementoes from those who didn't make it back from World War I still hang in one of New York's oldest bars.

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

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

This historic patch of real estate offers a glimpse of colonial Boston.

A beautiful, creepy 19th-century castle stands incongruously in rural Vermont.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

A miniature Italianate fantasy village on the coast of Wales and the set of ITC classic "The Prisoner."

One car at a time please.

Once a speakeasy operated by Al Capone, this Milwaukee cigar bar is now a haven for ghost hunters.

This landmark cemetery in Boston was created more than 300 years ago.

Two massive rock outcroppings on the Oregon coastline.

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

A giant, Gilded Age mansion that once belonged to the beer baron of Milwaukee.

A unique botanical garden housed in three giant geodesic domes.