front view of facade in the middle of the cliff of porto flavia, a zinc a mine gallery ed by engineer cesare vecelli in 1924

porto flavia sardinia masua mine zinc cliff coast facade quarry front view italy rock cave touristic port architecture people mineral frontage gallery vecelli 1924 island industrial shore harbor heritage shoreline access gate entrance scenery famous place museum geology coastal rocky travel destination building exterior mining escarpment wall mediterranean coastline historical middle designed engineer cesare tourist site