A new phase of building construction followed, replacing buildings destroyed by fire, demolished for the Gardiner Expressway, or needed expansions. The new buildings, mostly in the central block of the site, exhibited a new Modernist style of architecture. In 1946, the third Grandstand burned down. In its place was built the fourth Grandstand, a massive concrete construction and monumental cantilevered steel roof was a sharp contrast to the other buildings around it. The Modernist trend continued with the construction of other buildings and monuments typifying the modernist style including the Food Building (1954), the Shell Oil Tower (1955), Queen Elizabeth Building (1957) and the Princess Margaret Fountain (1958).