After Plaza de Mayo, Plaza Dorrego is the city’s oldest plaza. It dates to the 18th century and was originally a pit stop for caravans bringing supplies into BA from the Pampas. At the turn of the 19th century it became a public square surrounded by colonial buildings that survive to this day. There’s still a wonderful old-time atmosphere here as well as cafe-restaurants that will definitely take you back in time – if you can ignore the nearby chain coffee shops.
Plaza Dorrego is the heart of San Telmo’s famous Sunday feria (street market).