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Welcome to the Doors Open Ontario website

Welcome to the Doors Open Ontario website

Welcome

2016 event list

From April to October 2016, communities open the doors to some of Ontario's most intriguing and charming heritage sites. Admission is free! And the Ontario Heritage Trust invites you to experience these treasures first-hand. (Photo: Commerce Court ceiling detail, Toronto. Credit: Jamaal Merrick)

The Trust's website
Get involved!

Get involved!

get involved

Learn more about how your community can become involved in one of the Doors Open Ontario events.

Or volunteer at one of the events across the province. For more information on volunteering at a local event, check the Become a volunteer tab on each event page. (Photo: Mi’kmaq moccasins at the Bata Shoe Museum, Toronto. Credit: David Campbell)

Volunteer at a local event
Order your copy today!

Order your copy today!

Order your brochure

This year's theme: Medical science and innovation

Order a copy of the Doors Open Ontario 2016 brochure. Available in April, the brochure is a great travel companion and planning tool. Call 1-800-ONTARIO (668-2746) or email the Ontario Heritage Trust to have a copy mailed to you. (Photo: Museum of Health Care at Kingston. Photo: Meredith Westcott (2010).
Order your brochure here
Interactive map

Interactive map

interactive map

See at a glance what Doors Open Ontario events are happening throughout 2016

Map (2.2 MB PDF)

2016 event list
Defence Industries Limited (DIL) Walking Tour

Defence Industries Limited (DIL) Walking Tour

Featured Sites
Defence Industries Limited (DIL) operated from 1941 to 1945, employing more than 9,000 staff and producing over 40 million shells. At the time, it was the largest munitions plant in the British Empire. Discover the history of DIL and tour remaining sites.
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