The once-abandoned 140-year-old hotel used in the movie "In Dreams."

Final resting place of the two women killed on a small island off the coast of New Hampshire.

Once the future of underwater combat, this old sub is now open for visitors to muck around in.

The scarce remains of a sunken ship peek out from the sand on East Beach.

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

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

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

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

A mysterious stone embedded at the base of a historic Boston building.

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

America's oldest archaeological site or a muddled case of wishful thinking.

At the supposed instruction of Ben Franklin and Socrates, a Spiritualist believer intended to birth a mechanical messiah here.

Grave of the man allegedly responsible for a series of infamous murders in Boston in the 1960s.

Introducing the Green Fairy to her fawning masses.

This turn of the century masterpiece has a mysterious goaty interloper.

The final resting place of New Orleans' most famous voodoo priestess.

This historic New Orleans cemetery is the final resting place of members of the Independent Order of Odd Fellows.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

This once-grand marvel of engineering is now 41 miles of scenic hiking trail.

The home of one of America's most wealthy industrialists is now a historic site that remembers a more decadent time in the country's history.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."

After the devastating 2011 earthquake, historic Christchurch begins to recover, starting with the pop-up Re:START mall.

The ruins of New Zealand's largest classical-style church.