The Don Valley Brick Works is a former quarry and industrial site located in the Don River valley in Toronto, Ontario. The quarry has been converted into a city park which includes a series of naturalized ponds. The Don Valley Brick Works operated for nearly 100 years and provided bricks used to construct many well-known Toronto landmarks, such as Casa Loma, Osgoode Hall, Massey Hall, and the Ontario Legislature. The buildings are currently undergoing restoration, courtesy of Evergreen, a national charity dedicated to restoring nature in urban environments. Evergreen's focus has been the site's 16 historic factory buildings. The buildings - a collection of brick structures from the early 1900s and industrial sheds from the 1950s - have been revitalized through a process called ?adaptive re-use.? The result is Evergreen Brick Works - a community environmental centre with programs that celebrate the site's unique geological, industrial and natural heritage.