Reduced ticket. Open: only in the summer season IV-X. The exhibition: the history of the construction of the northern defensive complex between the end of the 13th and the beginning of the 16th century, bringing visitors closer to the original construction and function of this unique work of defensive architecture. The courtyard of the Barbican, with a picturesque gallery running around its interior, today also serves as an amphitheater where a number of artistic events take place.