In 1966, Louis Kahn was commissioned to design a museum for the art collection donated by entrepreneur Kay Kimbell to the city of Fort Worth. Inaugurated by the master himself in 1972, the Kimbell consists of a group of reinforced concrete layers configured as barrel vaults. Four decades later, the need to increase the area of the exhibition space encouraged to raise a new building that Renzo Piano has designed in dialog with the existing structures. With spectacular wood beams of over thirty meters in length, the new pavilion manages to double the museum’s exhibition area, developing most of the program below grade, covered with landscaped areas.