News Heritage Open Days. 10 – 20 September 2009 August 5, 2009 Share Facebook Twitter Pinterest WhatsApp Heritage Open Days – Liverpool. Still a month away but you need to book a place for most tours. The once-a-year opportunity to see the inside of many of Liverpool’s great old buildings. Including the 3 Graces, the Athenaeum, the Town Hall and even Bridewell Studios.