It has the romantic name of " Cistern of the Enchanted Moorish Girl" and was said to be a principal factor in the fall of the town during its siege. The Museu Arqueológico has been constructed above the cistern and here a visitor will find exhibits of locally found objects included items from the Stone Age. As a reminder of the Romans occupation is the Ponte Romana, a fine strong bridge over the Rio Arade below the city walls and rebuilt from the original in the 15th Century.