Situated on the harbourside in Castletown this fascinating building originates from the discovery in 1935 of the 18th-century armed yacht, the ‘Peggy’, walled up in her contemporary boat cellar. Built for George Quayle in 1791, she had remained undisturbed for a century after the death of her owner. The ‘Peggy’, in her original home, was generously given to the Manx Museum and National Trust by a family descendant and is now seen as being of 'extraordinary' maritime importance on the National Historic Ships Register.