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

Millions of numbers carved in glass represent the tattoos forced upon victims.

Dedicated to one of the darkest moments in Irish history, this memorial has faced its fair share of backlash.

The world's largest piece of copyrighted artwork.

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

The former site of an all-but-forgotten colonial landmark is now remembered by an often overlooked bas relief.

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

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

American revolutionaries and British soldiers alike are buried here in the fourth-ever cemetery in Boston.

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

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

This massive tea kettle was once a promotional stunt for the Oriental Teashop.

A men’s restroom became a sandwich shop.

This giant Boston statue of Mary is standing on a globe to show her power over the universe.

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

Ice cream stand, snack bar, and time capsule of milk conveyance.

America's original house of worship for Spiritualism, the religious movement based on communing with the dead.

Narrowest house in Boston.

The site of Paul Revere's historic two lantern warning.

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

One of the now-less-hidden floral gems of the "Emerald Necklace."

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

One of the last remaining World War II Victory Gardens in the U.S. is quietly growing across from Fenway Park.

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