Ontario Place was built as a showcase for the Province of Ontario that would replace the Government of Ontario building at the CNE and take advantage of what was then an under-developed waterfront area.
Construction started on March 17, 1969 and took an estimated 1.5 million person hours of labour to build at a cost of $29M.
The original park was consisted of three man-made islands connected by picturesque bridges and walkways with the Pods or Pavilion, complex and the geodesic dome of the Cinesphere as the focal points.
The park initially encompassed 96 acres of which 51 acres were land fill.
The gate first opened to the public on May 22, 1971, 38 years ago.