Detail of wall niches, Amphitheatre, 1st century AD, Segobriga, Spain, pictured on April 13, 2006, in the evening. Segobriga was founded by the Romans in the 1st century BC, after the Punic wars, and the town was developed during the reign of Augustus. It became an important administrative centre whose local industry was mining 'specularis lapis', a crystallized sheet gypsum used for window glass. Picture by Manuel Cohen.
Copyright Manuel Cohen