A long-unused stretch of elevated railroad tracks on the far west side of Manhattan has now reopened as one of New York's most remarkable parks. The miniature amphitheatre below, with Frank Gehry's IAC Building and Jean Nouvel's Nouvel Chelsea in the background to the left, would make a nifty performance space. It's already a kind of John Cage concert hall in which Tenth Avenue is the perpetual concert:
A few more shots at sunset: