A notorious punk house turned co-op.

Salute the leader of the proletariat.

Finally, you don't have to be a pious Swedish seaman to relax like one.

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

New York City's only preserved family home from the 19th century.

A discreet little stairway on St. Nicholas Avenue leads to a quaint and unexpected cobblestone street of 19th century wooden rowhouses.

The end of the 4 Line is also the end of the line for 300,000 souls in one of NYC's most illustrious cemeteries.

Long the exclusive domain of birds and vagabonds, this little-known Central Park peninsula is open to the public once more.

A living archive of urban activism and space reclaimed.

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

Though its celestial ceiling is impressive, the true star is the vast collection of French books.

Hidden in plain sight on a pair of Manhattan subway tunnels are a pair of public instruments that sing to each other.

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

This empty Victorian manse on Staten Island is said to be haunted but is actually a real life crime scene.

Just your average Marie Antoinette–themed speakeasy in an abandoned 19th-century subway tunnel.

Leaf through over 30,000 artists' sketchbooks in what may be the world's largest collection of doodles

Tucked in a nondescript downtown Brooklyn mall is a bar containing a remarkable turn of the century anatomical wax collection last seen in 1920s Berlin.

A celebration of capitalism in Midtown.

Read between the lines of the subway map to find the hidden abandoned Civil War fort.

A tunnel once abandoned now thrives with graffiti art as an off-limits makeshift gallery.

A masterpiece of LGBT art has been restored in what may now be the most valuable restroom in America.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

Read a book next to a Midtown waterfall.

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