Bamboo Banga

The latest rooftop sculpture at the Met is really awesome.  It's called Big Bambu, and was created entirely out of (you guessed it) bamboo by Doug and Mike Starn.  It's continually changing, an organic-yet-linear work of architecture.  The structure has been growing throughout the summer, and now, as September hits, it's almost 40 feet high.  It's like the house from Blue Lagoon got transported to high above Manhattan, with a five-star view of the park.  There's walkways that swirl and meander their way through the temporary forest that you can actually walk through on a guided tour.  (You've got to get there when the museum first opens to reserve your time).

It's only there till Halloween, also, so you'd better skedaddle uptown asap if you want to catch it.