Home to items never before seen by the public.

This seemingly out-of-place gas station by the Watergate hotel was once described as the most expensive gas station in the world.

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

On the Fourth of July this area will transform into a Pompeii-like storm of falling embers and ash.

Look closely and you’ll notice that the color changes a third of the way up the tower.

The sculptor was instructed to add “stallion attributes” to the general's bronze mare.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

This grand gothic brewery has been pumping out suds for over a hundred years.

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

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

This elaborate towering structure was once famed for its revolutionary height.

Yo, Adrian!

A curious fountain that has no water and includes Satan, a crab, and 9 giraffes.

The first and only carousel with a lineup entirely of insects.

On the Hudson resides one of the largest clocks in the world.

Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.

Now abandoned, the first public health hospital in the U.S. saw more than one million immigrants from around the world.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

In its day this historic fort held 100 cannons pointed in almost every direction to protect New York.

Lie in a hammock where George Washington stood.

This simple Manhattan salt house is artfully shaped... well, like a giant granule of salt.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.