Cinesphere

Cinesphere is the world's first permanent IMAX movie theatre, located on the grounds of Ontario Place in Toronto, Ontario, Canada. Constructed in 1971, it is the largest IMAX theatre in Ontario. The theatre has both IMAX 70mm and IMAX with Laser projection systems. The theatre is considered a building of heritage value and shows movies each weekend. It is owned by the Government of Ontario, which owns the entire Ontario Place site.

Cinesphere's is a triodetic-domed structure, akin to a geodesic dome, with a outer radius, and a inner radius, supported by prefabricated steel and aluminium alloy tubes. Eberhard Zeidler, who also designed the "Pods" of Ontario Place, also designed Cinesphere. Its screen is wide by high. Its seating capacity was originally 752, but this was reduced after a renovation for 3D projection in 2011 to 614. The building is surrounded by a moat, and the entrance area is through doorways on the east side connected to the Ontario Place pod bridges and staircases to the Ontario Place West Island. Exiting is done through doorways leading to ramps over the moat to the West Island. The seating is stadium-style seating with no obstructions. The Cinesphere is wheelchair accessible.