people with umbrellas walking on the upper platform of the don luis i steel bridge and cars driving on the lower platform, in

atmospheric bridge cloud dense 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 dom luis 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 high altitude umbrellas upper platform don cars driving lower surrounded rain