Berat is often referred as the city of a thousand windows and considered as one of the architectural treasures of Albania. Traces from Illyrians, Greeks, Romans, Byzantines and Ottomans are still evident and well preserved in the city with castles and mansions, old churches and mosques and impressive wall paintings, icons and murals.[4][5] Throughout the centuries, Berat was the place where various religions and communities coexisted in peace.