The artist James Turrell is repurposing an extinct volcano crater as an observatory to experience the cosmos.

Eons ago, a rushing lava river formed this pristine passage through solid rock.

See massive fossils that are over 200 million years old in northeastern Arizona.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

Along the old Route 66 is an abandoned trading post made from old telephone poles, built by a former circus clown.

An old saloon in the West filled with history, and according to some, a few dozen ghosts.

A home decorated by its owner with eye-catching and captivating assemblages of found objects

The former residence of Elizabeth “Mumbet” Freeman, an enslaved African-American woman who successfully sued for her freedom.

The headquarters of one of the world’s longest-running humor magazines bears a noticeable resemblance to a head wearing a Prussian helmet.

Eat first, shop later at this eatery within an Asian grocer.

The right to a full beard is honored by the grave of a man who was attacked and jailed due to his facial hair.

Constructed in 1676, this stone memorial is believed to be the oldest veteran's memorial in the United States.

The widow of Benjamin Franklin's brother became the first female newspaper editor in the United States.

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

The final resting place of the man who played the Invisible Man.

This location of a Mexican chain restaurant has a unique location: an old jail.

This smiling statue memorializes local cartoonist Bob Montana and his legendary creation.

The ghost town that was one of New Hampshire's first settlements now exists as a park detailing its history.

One of the earliest—and most commonly forgotten—acts of rebellion against English rule.

A small obelisk commemorates the launch site of the world's first liquid-fueled rocket.

Final resting place of one of the classic authors of horror literature.

This evocatively named natural crevasse was created by a torrent of water that smashed right through a granite deposit.

Ralph Waldo Emerson spent two years living here decades before it became a Frederick Law Olmsted-designed park.