The little city of Senlis, with its girdle of Roman walls and watch towers, is one of the most attractive places within reach of Paris. It is situated about thirty-five miles to the northeast, in the midst of the great forest land of Hallatte and Chantilly. Until the dissolution of the Carlovingian empire Senlis enjoyed the privileges of a royal residence, and, indeed, down to the time of Henri de Navarre the kings of France continued to visit the city, and were lodged in a castle built on the site of the Roman prætorium. The ruins of this castle, some of which date from the eleventh century, may still be seen among the attractions of Senlis; and of even greater interest are the Roman ramparts which surround the town and which were built when it still held its position as the township of the Silvanectes. These walls, “twenty-three feet high and thirteen feet thick, are, with those of St. Lizier (Ariège) and Bourges, the most perfect in France. They enclosed an oval area 1024 feet long from east to west and 794 feet wide from north to south. At each of the angles formed by the broken lines of which the circuit of 2756 feet is composed, stands or stood a tower; numbering originally twenty-eight and now only sixteen, they are semicircular in plan, and up to the height of the wall are unpierced. The Roman city had only two gates; the present number is five.” As one approaches the town from the station through the boulevard, the Renaissance tower of Saint Pierre and the beautiful _flèche_ of the Cathedral stand right ahead. The first of these two churches is now desecrated and converted into a large market hall, having previously been used as cavalry barracks. It is short and broad, having only three bays to the nave, two to the choir, and an apse of three lights; but it has one very marked feature, which is also seen, though to a lesser extent, in the Cathedral of Saint Gatien at Tours--the axis of the choir trends northwards, making with the nave an angle of some seventeen to twenty degrees. There is a certain amount of early Gothic work worth notice, but the prevailing style is Flamboyant; in the two last side chapels of the choir some curious vaulting is to be found, resembling rude attempts at fan tracery with heavy keyed pendants.