Canadian Pavilion

The Canadian Pavilion at Expo 67 in Montreal featured an inverted pyramid structure as well as a walk through an attraction called the "People Tree."

The building at its base housed a rotating theatre, which used moving wedge-shaped chambers to bring audiences from one screening to the next, making a complete revolution every half-hour.

Open to the sky, its four inner sloping walls featured giant sculptures of a sun dial, hour glass, compass and Kyogen and Haida masks.

Robbie's vision was ultimately successful thanks to the support of federal minister Mitchell Sharp as well as Canadian Pavilion commissioner H. Leslie Brown.

[6] Sixty feet in height, the People Tree consisted of a thousand such "leaves," with half bearing silk screened images of Canadians at work and play.