The site of the deadly Triangle Shirtwaist Factory Fire.

The oldest operating apothecary in the US has treated everyone from Thomas Edison to Mark Twain.

Named the fifth most beautiful building in America in 1885, this former courthouse boasts the best view in the Village.

New York's unstoppable progress turned this cemetery into the smallest burial ground in the city.

A strangely angled West Village home is the only monument to an explosion that took the lives of three American revolutionaries.

Cryptic messages embedded in the New York City sidewalk.

The one-time office of the architectural firm that ushered in the Gilded Age is now a Club Monaco.

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

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

The former hotel where Tesla invented the radio.

The one-time epicenter of American songwriting is now a little remembered Manhattan commercial block.

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

There are owls with glowing eyes in Herald Square.

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

The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.

The home of one of America's most beloved fictional characters has become a real world landmark.

This New York holdover was built to provide housing for shopgirls and still does not allow men above the lobby.

Cheap pizza and all of your naughty bedroom needs housed in a stunning example of Art Nouveau architecture.

Captain America, Sub-Mariner, and the Human Torch were all born in this art deco Manhattan masterpiece.

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

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.

Commemorating the spot where the famous scientist fed his pigeons.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

Amid the marketing blitz of modern Times Square is an elegant holdover from its showbiz glory days.