As the site of the former Roman Forum, Plaça Sant Jaume used to be the center of the old Roman city of Barcino. Originally quite a bit smaller, the large square, which is situated in the Gothic quarter, was partially filled by its namesake church along with its cemetery and other buildings. These days, however, the expansive, cobbled plaza is known as the political center of the city.Indeed, on one side you’ll set your eyes on the headquarters of local government, City Hall, which features a grand façade that dates back to the late 1800s, and whose interior can be visited once a week on Sundays. Opposite City Hall is the Palau de la Generalitat de Catalunya, the seat of the Catalan government, and from where 100 presidents have governed. It too is open for visits, but only guided ones, which take place the second and fourth weekend of every month.