Portugal–Spain border Portugal–Spain border The Portugal–Spain border is the international boundary between Portugal and Spain. Referred to as "la Raya" in Spanish and "A Raia" in Portuguese (the stripe), the current demarcation is almost identical to that defined in 1297 by the Treaty of Alcañices. It is one of the oldest borders in the world. The Portugal–Spain border is 1,214 km (754 miles) long and considered the longest uninterrupted border within the European Union. The border is not defined for 18 km (11 miles) between the Caia river and Ribeira de Cuncos, because of the disputed status of Olivenza, which has been
São Pedro do Sul, Portugal the 6th century BC, lacking streets of right angles and full of construction almost always circular. One of the Castros in São Pedro do Sul is Castro da Cárcoda. In the region exist several Roman bridges and Roman Thermal Spas. São Pedro do Sul was the southern border of the Kingdom of Portugal at the time of the Foundation of the country, being the natural border the river Vouga that's the reason of the name "Saint Peter of South". The first King of Portugal Afonso Henriques lived in São Pedro do Sul while healing is injuries after the battle of