The Casa do Arco or Solar dos Pimenteis, located in the Parish of Sé is a palatial house, is of seventeenth-century civil architecture, ending, on the west side, in a tower. It belonged to the family of Morais, Pimentéis and Bacelares. In 1694 was constructed the vault that united the two houses that belonged to the owner. Already at the beginning of the 19th century, the site underwent expansion works.
