Castelo de Salvaterra stands majestically on a hilltop overlooking the Miño River in Galicia's Salvatierra de Miño. Originally constructed around the 10th-11th century, this strategic fortress was rebuilt in the 17th century and served as a pivotal stronghold during medieval territorial conflicts between Portuguese and Castilian kingdoms. Today, the castle houses the Museo da Ciencia do Viño, one of Spain's largest wine science museums, offering interactive exhibits and tastings in an incomparable fortress setting. Visitors can explore the castle's historic grounds while enjoying audioguided tours that showcase the region's rich vinicultural heritage alongside its architectural significance.