Ключевые слова: abstract, architecture, backdrop, background, block, brick, city, cobble, cobbled, cobbles, cobblestone, construction, damaged, europe, european, floor, footpath, granite, gray, grey, ground, lines, made, masonry, material, mosaic, old, pattern, paved, pavement, paving, prague, regular, road, rock, rough, sidewalk, square, stone, straight, street, surface, texture, textured, tile, urban, wall, wallpaper, way,