On the northern side of the town stands the handsome Gothic church of Ay, dating from about the middle of the fifteenth century. The existing building replaced the edifice erected some two hundred years previously, and traces of which are still to be seen in the present transept. The stone tower, which is in striking contrast with the other portions of the structure, bears the date 1541 on its western face. This tower and the interior of the church were greatly damaged by the fire--traditionally ascribed to lightning--which occurred at the close of the sixteenth century, and the former had to be strengthened by filling up the arched windows and by the addition of buttresses. The bell, whose terrible tocsin used to warn good citizens that the _patrie_ was in danger in the days of the Revolution, when the church was converted into a Temple of Reason, had previously swung in the abbey of Hautvillers, and may have summoned the vintagers to labour as well as the faithful to prayer. From 1867 to 1877 extensive interior repairs and restorations, costing upwards of 6000_l._, greatly transformed the interior of the church. Care was, however, taken to preserve the numerous bits of mediæval and Renaissance sculpture with which both the interior and exterior of the edifice were studded. In many of the ornamental mouldings, as well as the capitals of the columns, grape-laden vine-branches had been freely introduced, as if to indicate the honour in which the vine, the material source of all the prosperity enjoyed by the little town, was held both by mediæval and later architects; and these appear all to have been scrupulously restored. One of the most characteristic decorations of this character is the sculptured figure of a boy bearing a basket of grapes upon his head, which surmounts the handsome Renaissance doorway. [Illustration: MOULDINGS FROM AY CHURCH.]