(_1 km. from Norroy on the left of Norroy-Villers road._)] _After passing through_ =Dornot= _and_ =Ancy=, _the tourist soon reaches_ =Ars-sur-Moselle.= The name “_Ars_” (_Arches_) is derived from the arcades of the Roman aqueduct, the imposing remains of which are still to be seen. Known locally as the “_Devil’s Bridge_,” it extended as far as the village of Jouy on the right bank of the Moselle, and served to bring water to the baths and swimming-pool of the amphitheatre of the ancient _Divodurum_ (Metz). It was 3,240 feet long, and 50 feet high. The church, burned down in 1807, was rebuilt in 1816 on the site of an ancient Roman fortress. _Ars_ contains important ironworks and a paper factory. =Moulins= _and_ =Longville= _are next passed, after which_ =Metz= _is entered by France Gate. Take the Rue de Paris, Ponts des Morts, Rue du Pont des Morts, Pont Moyen, Rue St. Marie, Rue du Faisan, Place de Chambre, then Rue d’Estrées on the right, to Place d’Armes, in which stands the_ =Cathedral.= [Illustration: METZ SEEN FROM THE FORT OF ST. QUENTIN] METZ ORIGIN AND CHIEF HISTORICAL FACTS The origin of Metz dates back to the Celtic epoch, when it was the capital of the _Mediomatrici_. The Romans fortified it, to defend the frontiers of the empire against the barbarians. Metz then became the centre of six great Roman roads leading to distant provinces: two from Metz to Rheims, two from Metz to Trèves (one on the right, the other on the left bank of the Moselle), one from Metz to Strasburg, and one from Metz to Mainz. A very rich and populous town, it was embellished by numerous Roman buildings, of which excavations have laid bare important remains: an =amphitheatre=, near Porte Mazelle, and above all =Gorze Aqueduct= (4th century), more than thirteen miles in length, which brought water from Gorze to Metz. Some fine remains of the aqueduct may still be seen at Jouy-aux-Arches. The Roman Emperors who visited Metz stayed at the Governors’ Palace, which stood in Place St. Croix. Metz was taken and laid waste by the Huns in 451. Half a century later it was rebuilt and, on the death of Clovis (511), became the capital of Austrasia and the cradle of the Carolingian dynasty. Louis-le-Débonnaire was buried in the Abbey of St. Arnoul. The Treaty of Verdun (843) gave it to Lothaire, who made it the capital of his kingdom Lotharingia (afterwards Lorraine). Thirty years later the Treaty of Mersen (870) handed it over to Louis the Germanic. It was governed, in the name of the emperor, first by the counts and later by the bishops. In 1220, on the death of Count Thiébaut, the town became a sort of republic under the title of “Free Imperial Town,” and was governed by the sheriffs until 1552.