This ancient sinkhole-turned-healing-pool is a treasure trove of archeological discoveries and may even be the Fountain of Youth.

The ruins of this antebellum sugar plantation are the end result of a Seminole attack during the Florida Wars of 1836.

This legendary "evil" doll has been haunting the citizens of Key West for over 100 years.

Stay in a room with a view... of the bottom of the ocean.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

St Bernard de Clairvaux Episcopal Church, better known as one of the oldest European buildings in the Western Hemisphere.

This Florida sinkhole hides a rainforest-like micro-environment in its depths.

Florida might be at its most surreal in this museum devoted to the famed Spanish artist.

Where manatees are the snowbird vacationers in these balmy Florida springs.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

France's most famous cemetery, with some of its most curious tombs.

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

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

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

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

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

Ralph Waldo Emerson spent two years living here decades before it became a Frederick Law Olmsted-designed park.

The Boston square dedicated to the dark poet who was born nearby.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

Hidden in Central Park's Ramble is a troublesome cave buried just beneath the surface.

Try not to get slimed in Tribeca.

This bridge is haunted by the ghost of a distraught mother.

A thriving Black community was destroyed by an angry white mob at this site in 1923.

A 1950s eccentric's vision of Eden preserved as a hiking trail.