It is a well-known fact that cities struggle with their Olympic legacies. In Munich, the velodrome from the 1972 games was recently demolished in order to make room for a new sports arena designed by 3XN. The equivalent structure from Montreal’s 1976 Olympics has been spared this fate, although the hall erected by French architect Roger Taillibert has become increasingly unrecognizable since 1992. As the Montreal Biodome, it now houses an indoor zoo with five habitats, designed to echo nature as closely as possible, that range from the tropical rainforest to the subpolar regions of northern Canada and Antarctica. Thousands of animal and plant species live here under a single roof that over the course of time had become barely visible to visitors.