This is the entrance to Leadenhall Market where Harry Potter was filmed entering the magic shop and buying his first magic wand as he prepared for Hogwarts. Leadenhall Market, built in 1881, is London's most beautiful Victorian Market. It is also the location where some of the exterior Diagon Alley scenes were filmed. Located in Bull's Head Passage in Leadenhall Market the opticians shop was the film location used for the entrance to the Leaky Cauldron in Harry Potter and the Goblet of Fire