Last Exhibition at Tate Modern

 Sunflower Seeds by Ai Weiwei

 http://www.youtube.com/watch?v=td3_EKX1Igo

http://www.youtube.com/watch?v=PueYywpkJW8&feature=related

http://www.tate.org.uk/

http://en.wikipedia.org/wiki/Tate_Modern

http://es.wikipedia.org/wiki/Tate_Modern