Museum of Contemporary Art Toronto Canada

This guide to the Museum of Contemporary Art Toronto Canada traces the building back to around 1916, when the Northern Aluminum Company ran one of the city's tallest factories here, its floors carried on unusual mushroom-shaped concrete columns instead of iron beams. By the Second World War the plant controlled roughly three quarters of all aluminum production across the British Empire, before later becoming an auto parts plant that went bankrupt in 2006. Look up at those same columns, once built to carry heavy machinery.