Ключевые слова: abstract, architecture, art, asturias, authority, backgrounds, bell, business, cable, cage, closeup, collection, color image, communication, complexity, computer, connection, control, creativity, data, door, electricity, equipment, factory, fence, front view, gauge, germany, high angle view, horizontal, illuminated, indoors, industry, lock, machinery, metal, no people, old, order, russia, security, sketch, spain, symbol, technology, underground, vertical, working,