An artist's cute bronze subway sculptures belie his violent artistic past.

A posh members-only club with a literally dramatic history.

Built as a gift to the hottest tastemaker of the time, these hidden quarters remain an Art Deco showpiece.

Spinning silently in the lobby of an Art Deco masterwork is a massive vintage model of the Earth.

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

One of only two commuter aerial tramways in the United States.

A miniature rainforest is growing inside of a Midtown Manhattan office building.

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

Elevated freight railway turned wildly successful urban park.

A crumbling hospital from the 1850s on Roosevelt Island.