This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

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

This nearly endless university hallway is home to a unique sunset known as "MIThenge."

A three-piece musical sculpture installed between the subway tracks at Kendall Station near MIT.

Locals purchased this abandoned quarry in order to make sure it continues to be overgrown.

The mansion home of author Edith Wharton.

The monumental steeple on Amherst College's campus has no church attached to it.

Its history includes dinosaur fossils, cattle rustlers, Georgia O'Keeffe, and a mythical giant rattlesnake named Vivaron.

Despite violent work crews and massive delays this abandoned canal tunnel was built to last into the modern day.

There aren't too many operational funiculars around, but Pittsburgh has two!

Discovered by cows, these upstate New York show caves are presented with a healthy dose of psychedelic folk art.

A toxic ghost town sitting atop a massive coal fire.

It would take 35 firetrucks to fill this enormous glacial pothole.

This eerily well-preserved coal town was saved from destruction by a Sean Connery movie.

Buildings that dynamite couldn't bring down were abandoned because of bathroom issues.

Mid-Century Modern Meets Millionaire’s Row.

Where the rich wintered in Pasadena.

A British pub embodies the spirit of a California legend.

One of Hollywood’s favorite government buildings.

Colorado Boulevard’s historic bookstore, operating since the bustling city of Pasadena was merely some orange groves and a few ostrich farms.

A Masterpiece with a Tragic History.

A stellar example of Art & Crafts architecture, and a movie set to boot.

Bug-devouring flora are the stars of a special wing of the glass conservatory.

A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.