United Kingdom - England

Theme: Hidden Nature

Dates: 11-20 September 

More information: https://www.heritageopendays.org.uk/

United Kingdom - Scotland

Theme: Get into buildings!

Dates: 5-27 September

More information - https://www.doorsopendays.org.uk/  & https://archaeologyscotland.org.uk/explore/

United Kingdom - Northern Ireland

Theme: Heritage and Education

Dates: 7-13 September

More information: https://www.facebook.com/ehodni/

United Kingdom - Wales

More information: https://cadw.gov.wales/visit/whats-on/cadws-open-doors-online

United Kingdom - London 

More information: https://open-city.org.uk/open-house