June 3 and 4, 2017 | Mark Your Calendars!
Doors Open, held annually on the first weekend in June, is a once-a-year opportunity to tour some of Ottawa’s most fascinating and unusual places.
Come and explore Ottawa's history, culture and stunning architecture. It's FREE, it's fun and it's the perfect way to discover how Canada's capital has become the beautiful city it is today.
This year, Doors Open is celebrating Canada's 150th birthday by featuring over 150 of Ottawa's most extraordinary buildings, from Carp to Cumberland and everywhere in between.
Doors Open Ottawa Adds 39 New Locations for 2017 / CBC News Ottawa