The LWL-Industriemuseum Henrichshütte in Hattingen is a former ironworks that operated from 1854 until 1987, now preserved as one of the largest industrial monuments in the Ruhr region. The sprawling open-air site features blast furnaces, a hot-blast stove, and original machinery, all open to visitors. Alongside its permanent exhibition on iron and steel production, the museum regularly hosts concerts, open-air events, and cultural festivals.