The master architect of the Old Port was Paskoje Miličević. During the 15th century, he was responsible for building St. Luke’s bastion and the Kaše breakwater. The first protected the city from attack and the second from angry seas. This once was the harbor for Dubrovnik’s massive fleet of ships. Today Stari Porto accommodates only small pleasure boats. In the background are the Asimov Tower, the Dominican Monastery and Fort St. Luke.