Centro Region, Portugal known as the Princes of Beira. Along the region’s mountainous border with Spain are a series of fortresses and castles that once protected the country from its many invaders. Over the centuries, Moors, Christians, Spaniards and Portuguese have all tried to take these villages, but their higher elevations usually gave them a distinct advantage. On that border, the more than one dozen fortified frontier villages beckon today’s visitors to come explore a 900-year history — full of the heroism, epic battles and romance upon which Portugal struggled to become a nation. Today, Portugal boasts the longest-standing border in all of
CTT Correios de Portugal, S.A. CTT Correios de Portugal, S.A. Postal Services of Portugal, plc () is the national postal service of Portugal. The acronym CTT comes from the former name of this department (, meaning "Post, Telegraph and Telephone"), which was also the designation of postal services for the former Portuguese Colonies and still for the Macau Postal Service nowadays. CTT has become a public limited company in 1991, and in December 2013 the shares were listed on Euronext Lisbon. In 2007, CTT started to offer a mobile phone service in Portugal, under the brand name Phone-ix. CTT were privatised in 2014, in order