Contented with their magnificent cathedral the people of Tarragona have done little to adorn their city with smaller churches. Adjacent to the seminary there stands the graceful little chapel of San Pablo, the origin of which is still a matter of conjecture. Its architectural features suggest the first half of the thirteenth century, with the exception of its west porch, which belongs to no recognised style. The chapel is first mentioned in a document of the year 1234. These edifices apart, the Middle Ages have done little for _Tarraco togata_. Its remaining monuments belong to its infancy and prime. The Cyclopean walls, now declared a national monument, extend from near the Puerta del Rosario to the crest of the hill on which the city stands, and thence to the eastern angle of the ancient prætorium, now converted into a prison. The base of this wall is formed by huge blocks of unhewn stones, uncemented, and with their interstices filled by smaller stones. The character of the work bespeaks the primitive nature of the builders. On this rude foundation rests the more regular work of the Roman conquerors. The _enceinte_ formed by these walls is of the shape of an irregular polygon, measuring three-quarters of a mile across, and open on one side. The angles are defended by square towers, and the curtains are pierced by gates, to some of which the name “Puerta ciclopea” is given. The Puerta del Rosario, called in the Middle Ages “Portal de Predicadors,” is about eight yards thick and is roofed by an enormous block of stone about 36,000 kilogrammes in weight. On the stones composing the Roman part of the wall, Iberian letters are traced. These were merely masons’ marks for the guidance of the native workmen, and form no words. The Torre del Arzobispo was raised in Christian times on the old Roman tower. The wall extending to the Torre del Capiscol is attributed to the Scipios, and dates in any case from their time. The principal Roman gate, called the Puerta del Socarro, is a noble work formed by three concentric arches. Passing through this we obtain a fine view of the strip of wall built by order of Hadrian, and may re-enter the city by the eighteenth-century gate of San Antonio, which pierced a wall built or restored by Norman adventurers in the twelfth century.