Need to book a room at the Hotel Pennsylvania? Just dial up 6-5000.

Site of the first pathological and bacteriological research facility in the United States.

This Fifth Avenue church has long been the favored worshiping place of Broadway actors and vaudeville performers.

The highest point on the island known for buildings that touch the sky.

Skewer up Kangaroo.

One of the few remaining American elm trees in New York’s Tompkins Square Park was the birthplace of a new religion.

Once considered the height of medical modernity, this structure is now the oldest remaining component of Roosevelt Hospital.

Church in Manhattan holds the bloody sock of Padre Pio, among with many other unusual relics.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

Down a stairway in the East Village, you could once read a plaque describing an alternate history of a fictional version of Manhattan.

The last remnants of what was once one of the world's grandest hotels can now be found in a Manhattan subway station.

A prohibition era watering hole for the police.

Harlem park dedicated to compulsive hoarders killed by their own junk.

A famous songsmith's custom piano, dubbed "High Society," is hidden just out of sight in one of New York's finest hotels.

Test your business savvy and play the market for cocktails at this stock exchange-inspired watering hole.

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

A partially hidden wall graffitied by spectators of the 1976 Bicentennial, recently rediscovered.

The mummified relics of an American missionary.

A DIY art gallery/music venue/lecture hall dedicated to video game culture.

A veritable variety of odds and ends.

A Natural History and Science Emporium.

The first "Hall of Fame" in America was designed by legendary Gilded Age architect Stanford White for what was then the NYU uptown campus.

One kilometer of thick brass rod laid out before your eyes.

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