cactus succulent tree close up in palacio de cristal gardens of porto

architecture area attraction background beautiful branches cactus cityscape close closeup color colourful cristal culture daytime decoration decorative desert design destination details diversity downtown europa european famous gardening gardens green group heritage historical history jardins july landmark landscape lawn natural nature outdoor palacio park pattern plant porto portugal portuguese pot scene scenic season shape sightseeing site succulent texture tour tourism touristic travel tree trip unesco urban vegetation view world