Under the ground floor of the Plaza de Velarde, also known as Plaza Porticada, you will find the Archaeological Centre of the Medieval Wall, which houses a section of the foral wall of Santander belonging to the Puebla Nueva of the medieval town.
On this visit you will find out how the people of Santander lived at that time, the different activities they carried out and where two of the gates that allowed entry to the town were located, the gate of Don Gutierre de Escalante and the Puerta de La Mar.
Also on display are objects of great interest that were found during the recovery of the space, such as ceramics from Santillana del Mar, Manises, France, coins from different periods, pipe fragments from the 16th century... and many other pieces.