Portugal–Spain border disputed between the two countries for two hundred years. A microstate existed previously on the border called Couto Misto. Districts on the Portuguese side of the border from North to South: Provinces on the Spanish side of the border from North to South: Portugal and Spain signed the Schengen Agreement in June 1991 which came into effect on 26 March 1995, making Portugal and Spain part of the Schengen area and thus the border then became an Open border. Portugal has since reintroduced border checks several times along the border with Spain, during the UEFA Euro 2004 championships, during the
Tourism in Portugal Tourism in Portugal Tourism in Portugal serves millions of international and domestic tourists. Tourists visit to see cities, historic landmarks, enjoy beaches, or religious sites. In 2016, Portugal had 21.2 million visitors, 12.6 million of which were foreign. The most popular destinations were Lisbon, Porto, Fatima, the Portuguese Riviera and the Algarve. The most popular with internationals were Lisbon, the Algarve and Northern Portugal. National tourists prefer Northern Portugal, followed by Central Portugal and the Algarve. In 2006, the country was visited by 7 million tourists. Ten years later, the country was visited by 12.6 million international tourists. In 2016,