The Biosphere, a large geodesic dome.
The Biosphère (45°30′50.73″N, 73°31′53.38″W) is a geodesic dome on Ile Sainte-Hélène in Montréal, Canada. The building was the United States pavilion for the 1967 World Exhibition Expo 67.
The spherical structure's architect was Buckminster Fuller. The building originally formed an enclosed structure of steel and acrylic, 76 meters (250 feet) in diameter and 62 meters (200 feet) high. A complex system of shades was used to control the internal temperature.
The architects for the interior exhibition space were known as the Cambridge Seven. Visitors had access to four large theme platforms divided into seven levels. The building included a 37-meter-long escalator, the longest ever built at the time.
A fire burned away the building's acrylic bubble in 1976, but the steel latticework remained.
A science museum on the theme of water was built in the Biosphère in 1995. The new museum is a set of enclosed buildings designed by Éric Gauthier, inside the original steel skeleton.
External links
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