Finally in 1950, this opera house could open up its doors, after a war period when all opera and theatre stages in Gdansk were destroyed by the Red Army. Since then it has been well visited by a cultural interested crowd. Several different music and dance performances are held here every year.

Built on the remains of the old Moorish mosque, the building started out as a Parish Church, ascending in importance, as Archiprestal (1281), Collegiate (1413) and finally becoming a Cathedral in 1510. Building started at the end of the 13th Century. It is of Levantine Gothic Style, with three naves and a gallery, a transept transformed by Pere Compte at the beginning of the 16th Century and side chapels between the buttresses. Of note inside is the ironwork, the Baroque organ, the work of Jacinto Perales and the choir stalls, made by Juan Bautista Borja and Tomás Llorens (1716-1718). The sacristy is home to the relics cabinet and cupboard, the work of José Ganga (1732-1734), holding diverse relics within a carved bust. On the outside, of note in the Tower, built between the late 13th Century and the mid-14th Century, the same as the three main gateways, The Puerta de Cadenas (14th Century), Puerta de Loreto (15th Century) and finally, the Portada de la Anunciación, completed by Juan Inglés in 1558.

Housed in a 15th century Franciscan monastery, this museum is truly stunning. On display is a wide range of Gothic artwork. The flagship piece of the museum is Hans Memling’s triptych "Last Judgement."