At the end of Via Porta all'Arco stands the main gateway to Etruscan Volterra, a huge arch of a gate that has survived since the 4th century B.C. -- with a bit of Roman-era rebuilding in the 1st century B.C. On the outside of the arch are mounted three basalt heads -- worn by well over 2,000 years of wind and rain to featurelessness -- said to represent the Etruscan gods Tinia (Jupiter), Uni (Juno), and Menrva (Minerva). In 1944, just before intense fighting began against the Germans laying siege to the city, Volterran partisans saved the gate from destruction by filling it overnight with stones -- both for structural support and to keep it from being a focus of attack.