1. Explore Guimarães Castle (Castelo de Guimarães)
Step back in time at this formidable 10th-century medieval fortress, widely recognized as the birthplace of Portugal. Visitors can walk along its ancient walls and ascend the central keep for sweeping panoramic views of the city and surrounding landscapes. It holds immense historical significance as the presumed birthplace of Afonso Henriques, the nation's first king.
Cost: Access to the castle's interior and tower costs €2 per person. The external grounds and walls can often be explored for free. Combined tickets including the Palace of the Dukes of Braganza are available for €6.
Transport: The castle is located within walking distance from the city center, adjacent to the Palace of the Dukes of Braganza.