Doors Open Days first took place in Glasgow and Ayr in 1990 where it formed part of the European City of Culture celebrations.
The success of the event encouraged other areas to participate the following year and has now grown to cover almost every area of Scotland. More than 800 buildings are expected to open, generating over 200,000 visits to sites and hidden architectural gems of all kinds in locations throughout Scotland.
The event brings together people from all walks of life in celebration of the fascinating architecture that surrounds us and the stories that these buildings can tell. Last year over 5,000 volunteers gave their time to run tours, steward sites and activities.