Bosa city colorful buildings with castle on top of the hill and Vecchio bridge crossing Temo river, Bosa, Sardinia, Italy, Mediterranean, Europe

alghero sardinia italy town building architecture colorful vibrant fortress hilltop ancient historic balcony windows view landscape travel tourism vacation mediterranean coast sea sky blue sun sunlight warm charming picturesque beautiful europe italian history culture heritage summer holiday castle city cityscape old town town center historical site landmark destination tourist attraction coastal town waterfront mediterranean climate