It has become an annual fixture – a treat for those who like to nose around buildings that are normally shut off to the public.
Talks, film screenings, living history re-enactments and exhibitions are also being prepared.
Events include an exhibition of photos and posters from Buffalo Bill’s final tour of Great Britain in 1904 in Oswestry, a chance to meet Medieval Mummers and Ladies of the Night in Shrewsbury and an audio visual re-enactment of a WW2 small wireless intercept station in Whitchurch. There is also the chance to see inside Shrewsbury Prison with a limited number of Jailhouse tours available free of charge.
Sites that are not normally open to the public include Shrewsbury Flaxmill Maltings, where tours are being offered of the four Grade 1 historic buildings, including the first iron-framed building in the world.
The White House at Aston Munslow and the gardens at Brogyntyn Hall are also opening up.
Shropshire Council is offering free visits to Shrewsbury Museum & Art Gallery, Shrewsbury Castle and Shropshire Regimental Museum, as well as free places on a guided tour of the town.
Shropshire’s important industrial heritage is explored at Llanymynech Heritage Area where there are demonstrations of lime burning and lime slaking, while vintage films will be shown in the Hoffman Kiln, one of only three still standing in the UK.
Heritage Open Days is the largest heritage festival in the country and operates as part of the National Trust.
Shropshire’s Heritage Open Days events are free but some need to be booked. There is information on all events on the national Heritage Open Days website at heritageopendays.org
Events taking place across county
* Buffalo Bill’s final tour of Great Britain 1904: Oswestry Library, Arthur Street, tomorrow 9am to 6pm, Friday 9am to 6pm and Saturday 9am to 5pm.
* Oswestry Castle dig: Oswestry Castle mound, adjacent to the Guildhall, tomorrow 10am to 4pm, Friday 10am to 4pm (teaching 12pm, talk 3pm), Saturday 10am to 4pm (teaching 12pm, talk 3pm) and Sunday 10am to 4pm (teaching 12pm, talk 3pm).
* Behind the scenes at Shropshire Archives: Castle Gates, Shrewsbury, tomorrow 11am and 2pm. Booking required.
* Shrewsbury Library Tour: Castle Gates, Shrewsbury, tomorrow 2.30pm and Friday 2.30pm. Booking required.
* Benthall Hall: Broseley, Saturday 12.30pm to 5pm.
* The White House: Aston Munslow, SY9 9ER, Saturday 10am to 4pm and Sunday10am to 4pm.
* Bishop’s Castle Town Hall: High Street, Saturday 10am to 2pm and Sunday 2pm to 5pm.
* Ellesmere Historic Canal Yard: Birch Road, Saturday 10am to 3pm and Sunday 11am to 3pm.
* The Guildhall: 1 High Street, Newport, Saturday 10am to 4pm.
* Llanymynech Limeworks Heritage Area: North Road, Saturday 1.30pm to 4.30pm and Sunday 12pm to 4.30pm.
* Oswestry shopping through the ages: The Memorial Hall, Smithfield Street, Oswestry, Friday talk 7.30pm.
* Whittington Castle tours and living history day: Castle Street, tomorrow 10am to 4pm, Friday 10am to 4pm and Sunday 10am to 4pm.
* Coleham Pumping Station Steaming: Longden Coleham, Shrewsbury, Saturday 10am to 4pm and Sunday 10am to 4pm.
* Shrewsbury Flaxmill Maltings: Spring Gardens, Ditherington, Saturday 10am to 4pm and Sunday10am to 4pm.
* North Shropshire Masonic Rooms: Castle Hill, Whitchurch, Friday 11am to 4pm and Saturday 11am to 4pm.
* WW2 ‘Y’ Station re-enactment: Sainsbury’s car park, London Road, Whitchurch, Friday 11am to 4pm and Saturday 11am to 4pm.
* Tankerville Lead Mine: Pennerley, Shrewsbury, Saturday 12pm to 4pm and Sunday 10.30am to 4pm. Pre-booking is recommended.
* Sunnycroft: 200 Holyhead Road, Wellington, Telford, Saturday 10.30am to 4pm.
* Guided walk of Shrewsbury: The Music Hall, The Square, Sunday 11am. Booking essential.
* Greek Orthodox Church of the Holy Fathers of Nicea: Hexham Way, Sutton, Shrewsbury, Saturday 12.30pm to 3.30pm and Sunday 12.30pm to 3.30pm.
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