The Montreal Biosphere, located on Saint Helen's Island in Montreal, Canada, is a museum dedicated to the environment. It was designed and created by visionary architect Richard Buckminster Fuller originally as the pavilion of the United States for the 1967 World Fair.

The Biosphere was the culmination of over twenty years of Fuller’s obsession with geodesic domes, a structure that emerged from his interests in material efficiency, structural integrity, and modularity. Fuller wished to demonstrate that it was possible to create a livable space using only one fifth of the materials normally used in conventional architecture.

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