Did you know St Paul’s Cathedral is home to the famous Divination stairwell from the Harry Potter movies? 📽️ As well as being the backdrop to many much-loved films, St Paul's Cathedral is one of London’s most famous cathedrals, where you can discover a spectacular array of art, panoramic views of the London skyline and an even more fascinating history. A masterpiece from Britain’s most famous architect, Sir Christopher Wren, the cathedral is undoubtedly one of London’s most majestic buildings.