What was once a true peninsula has now been filled in, causing the water to recede and leaving many streetside "waterfronts" and landlocked "islands."

A tiny plaque marks the location of the water source that facilitated the birth of modern-day Boston.

Stolen goods adorn the organ at Old North Church.

Dedicated to one of the darkest moments in Irish history.

This area was once known for being a lawless haven for rough-and-tumble sailors, earning the maritime-themed nickname "the black sea."

Historic Hull Street was actually the first street with a proper name in the Boston area.

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

A mysterious stone embedded at the base of a historic Boston building.

This historic patch of real estate offers a glimpse of colonial Boston.

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

A more than 260-year-old crypt built on Boston's oldest English burial ground.

Narrowest house in Boston.

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

The history of the tea trade is told in bas-relief on this historic pair of Boston doors.

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

The former locus of Boston's high culture has been shuttered and buried for over 70 years.

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

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

Despite its extensive history, this fort saw little to no combat.

The highest point in the state of New Hampshire, and while unlikely "the worst weather in the world," it sure seems that way to hikers.

Near the summit of Mount Washington, a stone monument remembers a life lost to one of the mountain's infamous storms.

This small stone chapel is a hidden gem just outside the University of New Hampshire campus.

New Hampshire's first neighborhood is now preserved as a historic village with live action role players.

"Try not to knock anything over!"