CTV Videos of "Four Sisters" Demolition Toronto Star Video of "Four Sisters" Demolition High resolution video of the "Four Sisters" Demolition Pictures of "Four Sisters" demolition on flickr.com by Andrew Alexander Video of boiler house demolition Unauthorized photographs taken by an urban explorer Ontario Power Generation Coal-fired power stations in Ontario Ontario Hydro Buildings and structures in Mississauga Demolished buildings and structures in Ontario Demolished power stations Former coal-fired power stations in Canada 1962 establishments in Ontario 2005 disestablishments in Ontario Buildings and structures demolished in 2007