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

Architecture lovers won’t stop touching the National Gallery's 19.5 degree marble prow.

Legend has it that President Grant’s frequent drinking in the lobby gave rise to the term “lobbyist.”

Perhaps the most scandalous statue of America's first president.

This restaurant has been a haven for D.C.'s LGBTQ community since the 1950s.

An abandoned textile mill that is now home to art and concerts.

Developed by focused shutterbugs, this museum exposes visitors to more than 6,000 different cameras.

Forget Hollywood, one of the biggest stars in the world can be found in Roanoke, Virginia.

This 29-ton granite ball spins around at the slightest touch thanks to a scientific phenomenon.

A railroad tunnel that, upon its completion, was considered one of the engineering marvels of the modern world.

The world's oldest continuously operating airport was founded by the Wright Brothers.

The bomb-ravaged remains of of a colossal Neptune.

This tiny chapel withstood a massive mudslide and flash flood.

Five candy-colored villages on the Italian Riviera.

The ruins of the largest gladiatorial school in Rome are largely hidden under modern streets.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

At this former Prohibition speakeasy, electric birds signaled the arrival of hooch.

An isolated island home to one of the oldest English-speaking communities in the region and Maryland's state dessert.

One of the oldest active carousels in the country—but it might be missed by all but the keenest-eyed boardwalk strollers.

This building at the south end of the boardwalk was once home to the U.S. Life-Saving Service and the U.S. Coast Guard before being rescued itself.

Formerly the world's largest, this Willy Wonka-esque contraption runs 24/7.

The only diamond mine in the world where you can keep what you find.

Giant busts of 42 U.S. presidents are sitting in a field in Virginia.

It was once the base for a series of domestic terror attacks.