people with umbrellas walking on the upper platform of the don luis i steel bridge in porto surrounded by fog and rain clouds,

atmospheric bridge cloud dawn dense dom luis douro river evening fascinating fog foggy morning gaia grey historical bridges place iron memorable views metro porto mist muktuk mystical noir oporto people walking ponte portugal subway public transportation railway rainy day street riverside silhouette sky clouds stay cables steel structure tourist travel groups tuk unesco world heritage vessel yacht umbrellas upper platform don surrounded rain