ARCHITECTURE. SAILING CLUB. A boat tied up in the bay The Royal Sailing Club of San Sebastian is a Rationalist-style building designed to resemble a boat moored at the quayside. It was built in 1928 by architects José Manuel Aizpurua and Joaquín Labayen. It's also the most important work in the Spanish context of Modern Architecture and was recently listed as a "Site of Cultural Interest" with the category of a "Monument".