Why are volcanic tuff and Vesuvian lava widely used in Naples buildings and streets?

In Naples, the use of volcanic materials in construction and infrastructure is a direct result of the region's unique geological setting near Vesuvius.

The blond, volcanic tuff—also known as tufa—is widely utilized in the city's architecture. This material is abundant in the local landscape and has been used for centuries, even serving as the medium through which ancient Roman galleries were carved to connect the gulfs of Naples and Pozzuoli.12

Additionally, dark Vesuvian lava is commonly used to pave the city's older streets. These materials are deeply integrated into the Neapolitan urban fabric, reflecting the city's long-standing relationship with the volcanic activity that defines its environment.1