St. Thomas Psychiatric Hospital – abandoned now, in St. Thomas, Ontario.
This website has LOTS of pictures of the hospital in its abandoned, run down, condition.
St. Thomas Psychiatric Hospital – Ontario Abandoned Places (talkingwallsphoto.com)
Interesting note on this webpage: “January 2020 – Actor Jason Momoa intends to film a post-apocalyptic television show inside the former hospital. It will be titled ‘See’ and will be released on Apple TV.” My curling teammate’s daughter, Shayla Brown, has gotten acting parts in this series. Reading further on this, seems that because of COVID-19, the 2020 taping was postponed, so not sure if they ever filmed there.