Inside the Shanghai building that moves

One of the most bizarre buildings you'll ever see is in Shanghai. It's a type of kinetic building, meaning the building changes shape over time. Following is a transcript of the video.

This building moves. Ths Fosun Foundation is a kinetic building in Shanghai. It was designed by Foster + Partners and Heatherwick Studio. How does it move?

The architects were inspired by the open stages of traditional Chinese theaters. They designed a moving curtain made of 675 metal "tassels." The bamboo-like tassels are covered with stainless steel sleeves, decorated with patterns resembling Chinese weaving, ropes, and knots, and arranged on three tracks that rotate around the perimeter. 

Because they're layered, they create a semi-transparent screen. It moves the building to reveal a theater on the balcony. The building is a cultural center in the Bund Finance Center. It has performance venue, exhibition, and event spaces. The building is four stories tall and has four stories underground.