Dutton Dunwich hosts Doors Open on October 22.  This free event provides access to locations that would not otherwise be open to the public. https://www.doorsopenontario.on.ca/

Niagara-On-The-Lake is already a popular tourist location and will be all the more popular with the free Doors Open event today. https://www.doorsopenontario.on.ca/  

September 23 is the Doors Open event is Woodstock.  A free event to take the family out to see places that are not otherwise open. https://www.tourismoxford.ca/events_and_experiences/festivals_and_events/doors_open_woodstock.aspx/ https://www.doorsopenontario.on.ca/