The Tabernacle Chapel at Morriston was built in 1872 by John Humphreys of Swansea. A unique feature is the use of semi-circular arches. The building has been described as the "Nonconformist Cathedral of Wales" and has been listed as Grade I on the basis that it is "the most ambitious grand chapel in Wales, its interior and fittings remain virtually unaltered". The Guildhall is one of the main office buildings in the centre of the city and was designed by Percy Thomas and opened in 1934. It is faced in white Portland stone and includes a tall clock-tower which makes it a landmark. The building comprises the City Hall, the Brangwyn Hall concert venue and the County Law Courts. It is considered "the most important building in Wales of its period". In addition to these there are a number of Grade II* listed buildings; Ebenezer Baptist Chapel and its Hall in Ebenezer Street; the Glynn Vivian Art Gallery; the Midland Bank building; the Mount Pleasant Baptist Church in Kingsway, along with its Hall and School blocks; the Offices of Associated British Ports in Pier Street; the Royal Institution of South Wales building, now Swansea Museum in Victoria Road; and the Old Guildhall in Somerset Place. The poet Dylan Thomas is perhaps the best-known. He was born in the town and grew up at 5 Cwmdonkin Drive, Uplands, where he lived for 23 years and produced two-thirds of his published work from his tiny bedroom which has been faithfully recreated as it may have been in 1934 and is open for house tours, events, Edwardian dinner parties and overnight stays. There is a memorial to him in the nearby Cwmdonkin Park; his take on Swansea was that it was an "ugly lovely town". In the 1930s Thomas was a member of a group of local artists, writers and musicians known as The Kardomah Gang, as they frequently met in the Kardomah Café which was in Castle Street, Swansea until bombed during the second World War. Throughout the 19th century, the Vivian family did much to develop Swansea into a city. Their wealth and influence came from large copper mining, smelting and trading businesses in Swansea (Vivian & Sons), and is still visible today in their former family residences: Singleton Abbey (now used by Swansea University), Sketty Hall, Clyne Castle and Clyne Gardens. Henry Vivian became the first Lord Swansea in 1893. Rowan Williams, Archbishop of Canterbury, was born in Swansea.