The Dynamic Earth Centre consists of three main sections: the amphitheatre, the membrane roof, and the exhibition structure in a solid form of construction. The amphitheatre will be used mainly during the Edinburgh Festival, but it also functions as a public forecourt and a grand staircase, via which visitors reach the museum entrance level and viewing platform. To establish a relationship with the attractive surroundings, this level – the uppermost storey – is covered by a light, curved membrane roof, which is visible from afar against the imposing background of hills. The side walls are in glass, so that one has the impression internally of ­being in a covered open space, amply daylighted via glass slits in the roof and around the edges of the membrane. The solid structure at the base was built over the remains of a Victorian brewery and houses an exhibition that describes the history of the earth. The lightweight form of the roof is contrasted with the solid sections of the complex and with the urban ­surroundings. Externally, the link with the subject of the exhibition, “Earth and Nature”, is established by both natural and shaped rock formations. In contrast, the light, white roof skin and its minimal steel structure symbolize the artificial world created by man.