Ancient stone wall with loopholes

Keywords:

wall, loophole, fort, old, history, medieval, stone, ancient, castle, stronghold, architecture, europe, tower, past, building, war, sky, fortified, middle, protection, ages, famous, military, traditional, exterior, culture, old-fashioned, gun, structure, facade, obsolete, strength, siege, tourism, construction, tourist, gunnery, gray, lviv, lvov, ukraine,