What Foster + Partners says is the world’s largest building has opened after four years of design and construction work.

Terminal 3 of Beijing Capital International Airport has been completed ahead of schedule for the 2008 Olympics. The terminal and its ground transportation centre span 1.3 million m2, mostly under one roof. The first building to break the 1 million m2 barrier, it is designed to handle 50 million passengers a year by 2020.