The grand marble structure next to the White House is Andrew Carnegie's temple to Pan-American diplomacy.

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

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

A little marble compass above George Washington's (empty) tomb in the Capitol marks where D.C.'s four quadrants intersect.

Nope, not Washington Irving's house.

The longest continuous underwater road in North America was built at the insistence of Franklin Roosevelt.

Outstanding taxidermy dioramas showcase the grandeur of the continent's wildlife with spooky realism.

Michael Jackson got Bad and Crocodile Dundee walked on heads in this iconic Brooklyn subway station.

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

This exemplar of modernist architecture is meant to captivate and inspire students of the Cooper Union.

Salute the leader of the proletariat.

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

Commemorating the spot where the famous scientist fed his pigeons.

Check out the underground party scene at the "Burning Man of Brooklyn."

This wall on a street corner in Lower Manhattan has been a blank canvas for a rotation of renowned artists since the 1980s.

“Invented in Key West, Perfected in Brooklyn."

An artist's cute bronze subway sculptures belie his violent artistic past.

Blighted Irish field and the ruins of a 19th-century cottage on the edge of urban Manhattan.

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

A bit of retro transportation flair preserved in the world's largest department store.

A popular European tradition makes its way to the states on one of America's most famous bridges.

Great place to have a drink and a bite to eat in an atmosphere laden with New York's Bohemian past.

Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.