Wells Cathedral is an Anglican cathedral in Wells, Somerset, dedicated to St Andrew the Apostle. The seat of the Bishop of Bath and Wells, it is the mother church of the diocese and contains the bishop's throne (cathedra). It was built between 1175 and 1490, replacing an earlier church built on the same site in 705. The cathedral's architecture is entirely Gothic and mostly in the Early English style of the late 12th and early 13th centuries. The cathedral is a Grade I listed building.Photograph: David Iliff