Ciutadella is known for its charming medieval streets, noble avenues and gothic palaces. The old quarter with the Cathedral at its centre is a labyrinth of narrow streets occasionally opening out onto squares lined with bars and stylish boutiques. The main square, Placa des Born, is framed by handsome buildings and humming with atmosphere. The obelisk at the centre was raised to commemorate the townsfold who tried to ward off the Ottoman invasion of the Balearic Islands in 1558. Many of the city's noble houses are open to the public, including the splendid Palau Salort where you can find the 'room of mirrors' whose walls are adorned with Louis XVI mirrors.