The Scottish Maritime Museum in Irvine is housed within the vast, glass-roofed Victorian Linthouse. This A listed ‘cathedral of engineering’ was formerly the Engine Shop of Alexander Stephen and Sons shipyard in Govan before being salvaged and relocated to Irvine in 1991. The Scottish Maritime Museum in Dumbarton is located on the site of the former, influential and innovative William Denny Shipyard and features the world’s first commercial ship testing facility, the Denny Ship Model Experiment Tank. The Linthouse, originally built in 1872 to the design of John Frederick Spencer, a naval architect who had worked with Brunel. It was extended and altered more than once during the following 100 years of its working life and finally, when threatened with demolition for industrial redevelopment, it was dismantled and rebuilt in its current Irvine site in the latter part of the 1980s.