On Sunday mornings, an avid mass of stamp and coin collectors swarm over the Plaza Mayor, buying, selling and eyeing up each others' wares. This also acts as a Sunday-morning attraction for anyone out on a stroll in town, whether or not they are really bothered about tarnished old pesetas, stamps of all nations and 19th-century share certificates. Other traders sell old magazines, second-hand books, postcards, badges and ex-Soviet bloc military regalia. You can even get phonecards nowadays, along with just about anything else that someone, somewhere, considers collectable.
