Articles

The church of Santa Maria and San Valentino della Grada owes its name to the iron "grada (grate)"- still visible today - through which the Reno Canal flows into the historic centre, and which was used to prevent enemies from entering the city. The nearby building called "Opificio della Grada" is an ancient hydraulic factory built between 1681 and 1683 as a leather tannery; nowadays, it houses the so-called “Opificio delle Acque”, a place intended for cultural exhibition and educational initiatives organized in the framework of the “Bologna Città d'Acque” permanent project.