South Philadelphia is home to Keith Haring's only surviving in situ collaborative public mural.

Since 1956, this quintessentially New England seafood shack has been boiling its lobsters in seawater over wood fires.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

There must be a pun in this haystack somewhere...

The fanciest public restroom in New York City boasts fresh flowers, art, and a classical music soundtrack.

Commemorating the spot where the famous scientist fed his pigeons.

What began as an art installation is now the private drinkhaüs for a brewery's employees.

The land is home to swimming ponies and a legendary 18th-century treasure.

Step into a pastel time capsule where candy is truly dandy.

This tiny structure was built by the creator of the Brooklyn Bridge.

These 20-foot sculptures will help guide you from the local train station to the local sculpture garden.

These unassuming lighthouses have seen the first reading of the Pledge of Allegiance, the first wireless transmission, and more than one mystery.

Rusting away on the edge of New Jersey are the remains of a Cold War missile launch site.

Vacant Beaux-Arts buildings that serve as reminders of a beach town’s glory days.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

This subterranean oyster house has been the pearl of Grand Central Station since 1913.

A very classy 1920s-era bar right in Grand Central Station.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

One of Philadelphia's largest murals resides hidden under this bridge.

A piece of the iconic wall found an unlikely new home in a Vegas bathroom.

A 250 million-year-old rock formation has earned a rather unique nickname.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

The dramatic upward-curving roof is one of the most iconic examples of Googie architecture that still stands today.

Erected in 1697 this Philadelphia bridge is the oldest surviving roadway bridge and perhaps the oldest stone bridge in the United States.