A bronze plaque at an intersection in Hoboken marks the place where the game of baseball first took shape.

The remains of a 19th century spring, and the site of an infamous unsolved murder.

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

Once considered a marvel of engineering, this 107-mile canal played an integral role in building New York City.

A trove of century-old litho stones from the Puck Building's printing days were discovered behind a cellar wall, and are now hanging in the store.

This Manhattan skyscraper is a reminder of the brief but glorious age of urban air taxis.

The former sign of this immortal music venue is just that--undying.

Red frames showcase remnants of one of New York's original subway stations.

The place where Dvořák composed some of his most famous works.

The best way to get a sneak peek at the movies.

The only remaining building in New York to see the inauguration of a president is being slowly overtaken by a grocery store.

The East Village tenement from the cover of Led Zeppelin’s 1975 album has a tea shop on the ground floor.

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

The façade of this building looks like a bingo board, but it's really a giant clock by a famed graphic designer.

These historic buildings once housed the headquarters of one of the most infamous gangs of New York.

Manhattan's Thirteenth Avenue was made on landfill then deliberately destroyed — apart from one small, obscure block.

Jimi Hendrix's legendary recording studio in Greenwich Village.

This memorial honors thousands of enslaved Africans and their descendants who died in colonial New York.

This narrow shop in the East Village hosts a matchmaking service for the new millennium.

This former crime corner has been turned into an eclectic community center.

A notorious punk house turned co-op.

The artist and New York City icon lived, worked and died in this converted carriage house owned by another iconic artist, Andy Warhol.

A hidden "place of interment for gentlemen."

A historic 1890s architectural masterpiece with an iconic clock tower that, once open to the public, now faces an uncertain future.