The Ontario Heritage Trust works with communities across the province to open the doors, gates and courtyards of their unique and most fascinating cultural sites so you can explore the stories hiding inside.

Every April to October, Ontario’s heritage treasures are open to the public with free events across the province. Whether you are exploring on your own, organizing an outing with family and friends, or planning a first date, Doors Open Ontario has something for everyone.

From historical houses to modern marvels of construction, Doors Open Ontario showcases the buildings, natural spaces, infrastructure and cultural landscapes that shape and define our communities.
In 2017, Ontario is celebrating the 150th anniversary of Confederation. It’s a special moment in our history and a great opportunity for Ontarians to explore our past and imagine our future. This year, Doors Open Ontario will showcase special MyOntario programming to explore a once-in-a-generation chance to share your stories, perspectives and traditions.

The Doors Open Ontario website makes it easy for you to discover events happening across the province and identify which of the interesting buildings and sites you would like to visit. Please explore the website and the many features that will help you organize a successful Doors Open Ontario outing. Set up a profile by registering here to save favourite buildings and natural spaces to visit as you plan your adventure.

Since the program was launched in 2002, nearly seven million visits have been made to thousands of unique buildings and spaces, creating new stories with each visit. The Doors Open Ontario program also has a big impact on local communities, as participants spend around $5 million annually during their travels, as they learn about heritage conservation and local history, and have fun.

Join the millions of visitors who have had a great Doors Open Ontario experience, and start planning your excursion today.

What story will you discover in 2017?


What happened in 2016 …

  • 43 events hosted in 145 communities, representing 71 municipalities and 1,021 buildings/sites
  • Number of participants: 468,263
  • Number of volunteer hours needed to run all local events: 40,000+
  • Total revenue for event communities: over $4,700,000
  • 93 per cent of the provincial population live in a community that has hosted a Doors Open Ontario event
  • Of the 30 per cent of participants who came from outside the host community, 71 per cent travelled specifically to participate in Doors Open Ontario