Watch Modern Times Wonders: C.N. Tower and Skydome

They are the two most recognizable features of the Toronto skyline. They are the CN Tower and the Skydome. At 1,815 feet, the CN Tower was the tallest free standing structure in the world upon its completion in 1976, and held that record for over three decades. The Skydome, opened in 1989, was the first stadium in the world to feature a retractable roof and serves as the home for baseball's Toronto Blue Jays and the CFL's Toronto Argonauts. Explore the history and details of two of Canada's most well known structures.