The very first subway station in New York City is beautiful, decked out in chandeliers, and ... abandoned?

Empty, but not abandoned, this cavernous Brooklyn loading dock was once considered the largest individual building in the world.

HBO series' stage tucked away in a Greenpoint lot is the largest theatrical set of its kind in the United States.

A graffiti Mecca welcoming artists from around the world.

Elevated freight railway turned wildly successful urban park.

A remnant of the original World Trade Center complex continues to serve as a commuter gateway.

Try not to get slimed in Tribeca.

Known as the "Forgotten City" it was home to industry, riots, artists, squatters, and to one of the largest single disaster fires in New York City.

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

Behind a bodega is a small museum of relics and ephemera showcasing the history of New York.

Where the legendary Orson Welles got his theatrical start before "Citizen Kane."

A dilapidated dock tells the story of Titanic’s missed arrival.

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

A vibrant, 100-foot-tall mural dedicated to Evelyn Nesbit, the tragic icon of the Gilded Age.

This monument to a veteran of the Mexican-American War is one of only two in Manhattan that serve as an actual mausoleum.

A 19th-century politician who died after walking home in a blizzard is honored with this Manhattan statue.

The first museum in the United States dedicated entirely to posters.

Stunningly detailed mosaics in a New York subway station bring life to the Weimaraners of artist William Wegman's work—and to thousands of commutes.

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

A drawbridge named for a potentially intersex Polish national who fought alongside George Washington during the American Revolution, and an example of "Pulaski Red".

Iceland's tribute to its thankless civil servants.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

This ferry carries passengers across the Rhine propelled by no engine or paddles but by the river's current.

This Swiss cemetery is reserved for people who died in climbing accidents.