An office built to look like a giant basket.

Color-coded signs direct drivers on a network of routes designed to avoid Pittsburgh traffic.

A monument to the Mohawk people stands along an old Native American trade route.

In order to save this beloved rock, locals blew it up and put it back together piece by piece.

The oldest playground in America.

In a town that's had a whole lot of giant chairs this one still stands tall, just not the tallest.

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

The nation's second-ever First Lady urged the founding fathers to "remember the ladies."

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

The Atlantis of Cape Cod reemerges during the lowest of tides.

Painstakingly built dioramas sit unnoticed in a Boston office building.

The tomb of Increase Mather and his son Cotton, influential colonial ministers obsessed with the occult.

"Mock all and sundry things, but leave the saints alone."

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

This landmark cemetery in Boston was created more than 300 years ago.

Radical Bookstore and Community Space.

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

The Boston square dedicated to the dark poet who was born nearby.

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

The 32nd president's sprawling cottage sits on an island enclave jointly managed by the U.S. and Canada.

A beautiful Arctic museum and nature center preserves the culture of the Sámi people.

The mysterious canine hides atop a drain pipe on the back of the building, some say as a sneaky shoutout to Yale.

An architecturally unique lighthouse that had to be lifted up and moved to avoid falling in the sea.

The second oldest Jewish graveyard in the U.S. is tiny, with connections to George Washington and Henry Wadsworth Longfellow.