One of the finest cathedrals in England and rated as one of the most beautiful in the world - Gloucester Cathedral is one of the architectural jewels of the city of Gloucester, South West England. The magnificent 900-year-old Norman Cathedral lies at the heart of the city. But the Cathedral – or The Cathedral Church of St. Peter and the Holy and Indivisible Trinity to give it its proper name – has made its mark on the modern tourist map with a starring role in the films of JK Rowlings’ Harry Potter books.