By Will McGuirk

Explore the architecture of Oshawa for free this weekend. Among the organisations opening their doors to the public for this annual event are the Islamic Centre of Oshawa, the H.O.P.A. Oshawa office, the City of Oshawa Greenhouse, the Oshawa Museum, the Ontario Regiment museum, the Colonel R.S. McLaughlin Armoury, the Biltmore Theatre, the Regent Theatre, Charles Hall, and Simcoe Street United Church.
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