FRANKFURT.- The Städel Museum celebrated the topping-out ceremony for the expansion wing being built to house the presentation of art after 1945. The shell construction of the 3,000-square-metre underground facility was completed on schedule after a mere fifteen months of construction work. At the end of a process carried out in five stages since August 2010, the final section of the ceiling has been poured, representing a further milestone in the construction work. Altogether about 1,300 cubic metres of concrete and 330 tons of steel have been processed to date. With its striking dome-shaped roof featuring circular skylights, the museum building designed by architects schneider+schumacher of Frankfurt will form a new architectural landmark in the middle of the Städel garden. Max Hollein, Städel Museum director, comments: “We owe the project’s rapid progress to the good cooperation