If you haven’t yet had a chance to go, you should be sure to visit the Market Gallery at St. Lawrence Market. The current exhibition, called Tunnel Vision: The Story of Toronto’s Subway, is a fascinating collection of maps, photographs, memorabilia, and drawings illustrating over a century of subway plans and operations in Toronto. Dominating the gallery, which was the City of Toronto Council Chambers in the 19th century, is the front of an H-4 subway car; visitors are encouraged to take selfies with it.
While Canada’s first subway opened in 1954, there were serious subway proposals that date back to 1910. Interestingly, many of these early subway maps feature a line that looks very similar to the (Downtown) Relief Line.