@eshwarvyasa: Chengdu, China’s famous mask changing show. #bianlian The "chinese mask changing dance," known as Bian Lian (变脸), is an ancient dramatic art form from Sichuan opera that involves performers instantly changing masks. This is achieved through a variety of secret techniques, such as flicking a fan, moving their head, or waving their hand to trigger the mask change. The art is considered a national treasure, and performers can change up to 10 masks in 20 seconds.