In Porto the free gallery choices are endless. You can start at Miguel Bombarda, known for being part of the ‘gallery block’ – in both quantity and quality. The Fernando Santos gallery (which shows both new Portuguese and international artists such as Tàpiese and Nikias Skapinakis), Quadrado Azul (and its several pieces from national artists such as António Bolota and Francisco Tropa), Presença (with renowned works of art from Portuguese creators like Helena Almeida and Pedro Cabrita Reis and less obvious participants), Nuno Centeno (responsible for discovering rising artists) and Ò! Galeria at CCB Bombarda (which privileges young illustrators) are some of the places worth visiting. Outside Bombarda, you also have Pedro Oliveira (Calçada de Monchique, near Alfândega), one of the most historic galleries in Porto; there’s also Dama Aflita, with drawing and illustration works, at Rua da Picaria; or Fundação EDP, at Rua Ofélia Diogo da Costa, near Casa da Música.