madrid's cultural canvas: unveiling the city's unique manhole covers

aesthetics architecture artistic artistry city emblem identity cityscape civic art pride craftsmanship creativity cultural expression heritage custom decor decorative element design engraving historical iconic landmark local culture madrid manhole cover municipal neighborhood ornamentation ornate public space representation spanish street furniture symbol symbolic symbolism tradition unique feature urban planning visual historic buildings arts travel spain europe registro alcantarillado sewage telecommunications natural gas iron rain weather government utilities