A centuries-old church stands as a testament to Boston's "father of architecture."

This historic Boston building has gone from personal estate to porn theater and back again.

The lecture hall where Alexander Graham Bell first demonstrated the long-distance phone call.

A memorial to Chinese freedom in the city where American freedom was born.

What may be Boston's finest Art Deco building, located in the city's Financial District.

Each August, one of the largest religious (and food) celebrations in the country is held in Boston.

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

The last remaining 19th-century tenement from Boston's old West End neighborhood.

A single room pays homage to the prodigious achievements of the 30th President of the United States.

Dedicated to "the father of U.S. life insurance."

Dedicated to nine marines from Massachusetts who perished during the Beirut bombings.

Large Massachusetts museum dedicated to Armenian history and culture.

This supermarket is suspended 25 feet above an interstate highway.

This parking garage was the site of what was - at the time - the largest cash robbery in history.

Statue commemorating the use of ether in anesthesia.

The classic Christmas carol was written at this Massachusetts tavern in 1850.

This Victorian home turned opera house may have a phantom of its own.

Dedicated to the neverending mathematical constant, this plaque next to a park bench was sponsored by an anonymous benefactor.

In 1958, an MIT fraternity pledge laid down on this bridge and instituted a new, unique unit of measurement.

Harry Houdini plunged into the Charles River and performed one of his escape acts here in 1908.

Created by a local artist, these quirky sculptures each have their own names and personalities.

A simple but powerful tribute to the 20 victims of the 1692 witch trials.

Dedicated to a colonial woman who was hanged for being a Quaker.

This bronze sculpture was inspired by a photograph of Martin Luther King Jr. and his wife embracing after he won the Nobel Peace Prize.