The national celebration takes place every September and sees iconic structures all over the country opening their doors.
In Halifax, a host of venues are taking part thanks to many hard-working volunteers who will be on hand to offer information and, in some cases, guided tours.
This year’s event takes place between September 8 and September 17.
Here are some of the venues taking part.
For a full list of all the venues taking place in Calderdale, visit https://www.heritageopendays.org.uk/visiting/printable-area-lists/laa/Calderdale
1. Heritage Open Days 2023: Historic buildings opening up their doors for Halifax Heritage Festival
Halifax Minster will be holding open days from Thursday, September 7 to Sunday, September 10 Photo: Jim Fitton
2. Heritage Open Days 2023: Historic buildings opening up their doors for Halifax Heritage Festival
Bankfield Museum is holding an open day on Sunday, September 10. Photo: is
3. Heritage Open Days 2023: Historic buildings opening up their doors for Halifax Heritage Festival
Shibden Hall will be holding open days on Saturday, September 9 and Sunday, September 10 Photo: NW
4. Heritage Open Days 2023: Historic buildings opening up their doors for Halifax Heritage Festival
Calderdale Industrial Museum is holding an open day on Sunday, September 10 Photo: Bruce Fitzgerald