Ключевые слова: ancient, architecture, canal, canalisation, cast, circle, circles, circular, city, cobblestones, cover, cyrillic, decoration, detail, drain, drainage, ground, hatch, historic, historical, history, industrial, industry, infrastructure, iron, manhole, metal, moscow, old, pattern, pavement, public, round, russia, russian, sewage, sewer, sign, steel, stone, street, support, surface, texture, underground, urbane, vintage, water, waves,