This former Masonic hall has been turned into an art project that uses even more metaphysical iconography.

Over 50 whirling pools left behind from the glacial age.

19th-century operating theatre in which the use of ether was first demonstrated - plus, a skeleton and a mummy!

Three prestigious academic collections come together to create a world-class natural history museum.

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

The often-overlooked ruins of one of the first buildings designed by famous landscape architect Frederick Olmsted.

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

One of the most scenic falls in Massachusetts has a history of death and grim legend.

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

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

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

Enjoy an overnight at an old haunted B&B site of the Borden family murders.

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

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

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

An enormous, inside-out glass globe built in 1935.

The grave of America's 11th president is not in some grand monument but instead it's hidden away on the grounds of the Tennessee Capital.

More than a century after her death, Little Gracie Watson remains one of Savannah's most often-visited residents.

An early-19th-century hotel with a past that is steeped in the Civil War.

Two flush headstones mark the only known graves to be embedded in an airport runway.

Performers, intricate sets, and a real speakeasy tell the story of the 18th Amendment.

This kitschy tavern is also home to rare early editions of "Treasure Island."

"X" marks the spot of an echo chamber in the middle of a plaza.

One of Savannah's oldest and most haunted cemeteries, featuring graves desecrated by Sherman's Union Army.