This popular antique and craft fair attracts hordes of locals and tourists every Sunday.
It is centred on Plaza Dorrego in the heart of San Telmo, but spills out widely into the surrounding barrio (neighbourhood), which is turned into a gigantic pedestrian precinct.
San Telmo is one of BA's most atmospheric barrios with its crumbling decorative facades and cobbled streets.
It has attracted many bohemians and artists who have established their studios here.