Hordes of people flock to The Shambles, one of Europe’s best-preserved medieval shopping streets, to peer into its original shop-fronts leaning precariously towards each other. Now filled with whimsical cafés, restaurants and boutiques, it was once a busy street full of butchers. It is also the home of the Shrine of Margaret Clitherow, a 16th-century Catholic who is York’s very own saint.