Doors Open Burlington takes place on Saturday, Sept. 28, 2019 from 10 a.m. to 4 p.m. Visit heritage sites, noteworthy buildings, and interesting locations - free of charge. Many of these buildings and locations will offer special activities during the day. For Burlington, Doors Open provides a unique opportunity to view the city from a new perspective and celebrate the cultural importance of the sites to the community. View the 2019 Doors Open Burlington guidebook.