sentences:  Wide-scale development began after the Six-Day War, with the construction of a waterfront promenade, open parkland, shopping streets, restaurants and modern hotels.Carefully preserved were several churches, including one with foundations dating from the Crusader period, the city's two Ottoman-era mosques, and several ancient synagogues.The city's old masonry buildings constructed of local black basalt with white limestone windows and trim have been designated historic landmarks.