Below are photos and videos of the "Big Bambu" art installation on the roof of the Metropolitan Museum of Art. The Starn Brothers have been erecting this mass of bamboo poles tied with string for several months now. It has several levels, and visitors to the museum can take tours inside it.
This is a 360 degree video taken on the roof, which also shows the beautiful skyline, and trees of Central Park:
This is a video taken from underneath the sculpture. The poles are not anchored to the roof, but are free-standing, and often moving around. Though the video doesn't show it, visitors to the museum are walking around in the sculpture overhead. Scott and I took the tour inside, but we weren't allowed to take photos there.