Last church of this militaristic WWII style.

Second largest wastewater treatment plant in the country.

On a former island, this old fortification once used to protect the Boston Area and started Edgar Allan Poe in his military career.

The hill that gave the Massachusett tribe, and later the state, its name.

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

A former waterfront market is now in the center of town due to some interesting Boston engineering.

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

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

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

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

The bears may be gone, but their old cages can still be found.

This impressive Boston holy house is the American mecca for Christian scientists.

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

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

An alley way dedicated to graffiti and street art is a constantly changing street gallery.

Rising 30 feet in the air atop Quarry Hill, the Old Powder House is the oldest stone building in the state of Massachusetts.

This peaceful Massachusetts graveyard was one of the first "garden-style" cemeteries in America.

Site of a famous 19th-century transcendentalist utopian community, now abandoned.

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

This supermarket is suspended 25 feet above an interstate highway.

Run by a eugenics advocate, this aging institution conducted secret radiation experiments sponsored by Quaker Oats.

"the sweltering inhabitants of Charleston and New Orleans, of Madras and Bombay and Calcutta, drink at my well . . . The pure Walden water is mingled with the sacred water of the Ganges."

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

The pleasant woodland cemetery that has inspired more than its fair share of wild legends.