The Tagus River Flows Through Toledo, Spain - Typical Castilian Landscape And The Tagus River, The Longest River On The Iberian Peninsula At 1,038 Kilometers, Begins Its Journey In The Albarracin Mountains In Spain, And Follows Very Constricted Course For Much Of Its Length Before Reaching The Atlantic Ocean In Portugal. Seen Here, It Passes Through The World Heritage Listed City Of Toledo. Photo