The Servian Wall was a wall built by the Romans around Rome in the early 4th century BC. The wall was up to 10 metres (32.8 ft) in height in places, 3.6 metres (12 ft) wide at its base, 11 km (7 miles) long. Ther Servian Wall was the first of the two Roman walls built around Rome. The walls would later be superseded by the much larger Aurelian Walls in the 3rd century AD.
Many sections of the Servian Wall can still be seen around Rome. Sections of it outside the main train station is still visible with some remains within the modern station building. Other sections can also be seen around the outskirts of modern-day Rome.