Neue Nationalgalerie roof before being lifted up with the hydraulic cranes during a public ceremony in 1967 . Each of the segments in which the side beam is divided is 3.6m long. Architecture: Mies Van der Rohe. Photograph by Heinz Oeter.

Neue Nationalgalerie roof before being lifted up with the hydraulic cranes during a public ceremony in 1967 . Each of the segments in which the side beam is divided is 3.6m long. Architecture: Mies Van der Rohe. Photograph by Heinz Oeter.

Neue Nationalgalerie roof before being lifted up with the hydraulic cranes during a public ceremony in 1967 . Each of the segments in which the side beam is divided is 3.6m long. Architecture: Mies Van der Rohe.

Photograph by Heinz Oeter.