Dome

Lobby, looking up at the glass glazed portion of the facade where it connects to the titanium cladding; Known colloquially as The Egg. The Centre, an ellipsoid dome of titanium and glass surrounded by an artificial lake, seats 5,452 people in three halls (Opera, Music and Theater) and is almost 12,000 m² in size. The exterior of the theater is a titanium accented glass dome that is completely surrounded by a man-made lake. It is said to look like an egg floating on water, or a water drop. The dome measures 212 meters in east-west direction, 144 meters in north-south direction, and is 46 meters high. Guests arrive in the building after walking through a hallway that goes underneath the lake. The titanium shell is broken by a glass curtain in north-south direction that gradually widens from top to bottom. Source: Wikipedia; http://en.wikipedia.org/wiki/Main_Page (accessed 5/11/2011)