Composed primarily of limestone and dolomite, the island of Brac has been a source of stone for building decorative stonework for centuries. The old Romans have known its quality and used this very stone to build cities, amphitheaters, temples, palaces and graves all over Dalmatia. Gorgeous and tiny Trogir (formerly Trau) is beautifully set within medieval walls, its streets knotted and mazelike. It’s fronted by a wide seaside promenade lined with bars and cafes, and yachts in the summer. Trogir is unique among Dalmatian towns for its profuse collection of Romanesque and Renaissance architecture (which flourished under Venetian rule); this, along with its magnificent cathedral, earned it World Heritage status in 1997.