Arch and Almedina Tower
Built on the Almedina Arch, the Tower had the duty watch and defend the main access door to the interior of the wall. During the Arab occupation of the city, the walls stretched over two kilometers and are a powerful defensive system in which included the Tower and the Arch of Almedina, which remains the main entrance to the uptown. In the twelfth century, Coimbra capital becomes a new Kingdom and is at the top of the hill (now Largo D. Diniz) which stood the castle keep of the castle. It was there that was in the Puerta del Sol one of the most important gateways to the city. The wall then followed the direction of the Almedina Tower, which in the fourteenth and fifteenth serves as House Hearing of the House. But in the name are the clearest recollections of Arab presence in Coimbra. During the Arab occupation of the city, the walls stretched over about two kilometers and are a powerful defensive system in which they were part of the Tower and the Arch of Almedina, which remains the main entrance to the Upper part of the City .
The Barbican, currently features seventeenth-century, are still visible grubbing two horseshoe arches of the old double portal of the Muslim City. The logic of winners imposed new aesthetic codes: a sculpture of the Virgin and João de Ruão boy prevails today in the Porta da Barbacã (Barbican Gate).