Chichester Cathedral, formally known as the Cathedral Church of the Holy Trinity, is the seat of the Anglican Bishop of Chichester. It is located in Chichester, in Sussex, England. It was founded as a cathedral in 1075, when the seat of the bishop was moved from Selsey. Chichester Cathedral has fine architecture in both the Norman and the Gothic styles, and has been called by the architectural historian Nikolaus Pevsner "the most typical English Cathedral". Despite this, Chichester has two architectural features that are unique among England's medieval cathedrals—a free-standing medieval bell tower and double aisles. The cathedral contains two rare medieval sculptures, and many modern art works including tapestries, stained glass and sculpture, many of these commissioned by Dean Hussey. The city of Chichester, though it retains two main cross streets laid out by the Romans, has always been small enough for the city's entire population to fit inside the cathedral at once, causing Daniel Defoe to comment: I cannot say much of Chichester, in which, if six or seven good families were removed, there would not be much conversation, except what is to be found among the canons, and the dignitaries of the cathedral. The spire of Chichester Cathedral, rising above its green copper roof, can be seen for many miles across the flat meadows of West Sussex and is a landmark for sailors, Chichester being the only medieval English cathedral which is visible from the sea.