The Costume Museum in Viana do Castelo, housed in a former Bank of Portugal building, showcases the traditional costumes of the region with exhibits on wool and linen garments, Viana's traditional dress, and a gold workshop. Visitors can also explore tools used in garment production and enjoy temporary exhibitions on ethnography. The museum is a treasure trove of cultural heritage, offering a glimpse into the rich history and craftsmanship of Viana's traditional attire.