Designed by the Renzo Piano Building Workshop (RPBW) and Kendall/Heaton Associates, the highly anticipated expansion of the Kimbell Art Museum opened on Wednesday 27 November 2013. Surrounded by elms and red oaks, Renzo Piano’s 101,130-­-square-­-foot colonnaded pavilion stands as an expression of simplicity and lightness—glass, concrete and wood—some 65 yards to the west of Louis I. Kahn’s signature cycloid-­-vaulted museum of 1972.