This subterranean universe emerged in the mid-1960s partly to replace the retail services in small buildings that were demolished to make way for the latest skyscrapers and partly to protect office workers from the harsh winter weather. As each major building went up, its developers agreed to build and connect their underground shopping areas with others and with the subway system. You can walk from beneath Union Station to the Fairmont Royal York hotel, the Toronto-Dominion Centre, First Canadian Place, the Sheraton Centre, the Bay, Eaton Centre, and City Hall without ever seeing the light of day, encountering everything from art exhibitions to buskers (the best are the winners of citywide auditions, who are licensed to perform throughout the subway system) and walkways, fountains, and trees. There are underground passageways in other parts of the city—one beneath Bloor Street and another under College Street (both run from Yonge to Bay Street)—but this is the city's most extended subterranean network.
Toronto, Ontario, Canada