Classified as a National Monument, Palácio da Bolsa is a unique building in Porto Historic Centre, in neoclassical style. The headquarters of Associação Comercial do Porto, this palace has been in existence for 170 years and has several halls for concerts, receptions, congresses, incentives, fashion and commercial shows, auctions and events of the most varied nature. In addition to the availability of spaces, Palácio da Bolsa provides support services ranging from catering to hall decoration, also providing technical equipment and the use of its restaurant, "O Comercial".