Beautiful steampunk ghosts of early Massachusetts.

The massive machine creates cracking displays of indoor lightning.

A historic bridge with a lovely acoustic anomaly.

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

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

Radical Bookstore and Community Space.

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

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

Unlike other abandoned asylums this empty institution welcomes visitors, just don't go in the buildings.

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

Friction between grains of sand cause a curious "singing" sound.

No one really knows how these old hobby horses got here, but the herd keeps growing.

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

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

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

The headquarters in Salem doubles as an occult art gallery.

Museum dedicated to awful artwork.

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

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

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

The oldest Italian café in Boston, this spot also serves as a veritable museum of vintage coffee ephemera.

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

A beautiful Victorian-era cemetery, complete with a miniature village.