Ключевые слова: attraction, building, caverns, coal, construction, copper, dark, destination, edo, engineering, escape, event, famous, former, gallery, historical, history, industrial, industry, inside, interior, japan, landmark, landscape, manmade, massive, mine, mineral, museum, nature, northwestern, old, oya, park, period, quarry, railway, rock, space, stone, tochigi, tokyo, tourism, tourist, travel, tunnel, underground, unseen, volcanic,