Join us to explore some big mistakes made by planners and architects, and discover the architectural gems of Centretown, including the "Grand Dames," Ottawa's early apartment buildings. And get the stories behind a few place names, such as Elgin and St. Luke's. Meet at the Elgin Street Market (Elgin and Waverley) Sunday, August 17, at 11:00 a.m. The tour is about one kilometre and one hour.