A treasure trove of local history, bursting with ridiculously pretty cobbled streets overlooked by grand 500-year-old homes draped in colourful flowers, Santillana del Mar is pure medieval perfection.Although the secret has long been out, strolling here still feels as if you’ve strayed onto an old film-set. It’s known as the town of the three lies - neither holy (santi) nor flat (llana), and several kilometres inland from the sea (del mar)! As you wander, it seems all roads lead to the 12th-century Romanesque Colegiata de Santa Juliana, the final resting place of the early Christian martyr Santa Juliana from whom Santillana actually got its title