What are those walls? ➡️ These walls by the Termini station are the Servian walls, which means the most ancient defensive walls that were built around the city in the 4th century BC. This is the biggest portion of walls still surviving today. You can find more of these walls downstairs, in the corridors leading to the metro station underground, casually standing there by the shops and restaurants! When the new Termini station was built in the 1940s, the idea was to complement the ruins with the