Sanford Fleming Building
Named after the 19th Century railway engineer Sanford Fleming (who also invented the standard system of international time zones) this building was completed in 1907. A devastating fire in 1977 gutted the building and it was extensively rebuilt, retaining the same Beaux Arts style of the original but filling in what was previously a semi-enclosed courtyard with a large student commons space.
Reference: L.W. Richards, University of Toronto: An Architectural Tour, Princeton Architectural Press, New York, 2009, pp.69-70.