today in the Villa Giulia. The sanctuary included the temple of Apollo of about 510 BC to which belonged the Apollo of Veii (now in the National Etruscan Museum). The impressive thermal baths and the forum built under Augustus have been partially excavated in recent years. Many rich Tumuli and chamber tombs have been found. The most famous is the Grotta Campana uncovered in 1843, a chamber tomb with the oldest known Etruscan frescoes. There are also long tunnels leading into the plateau of the city, which may corroborate Livy's account of the Roman victory in the Battle of Veii. The walls of Veii, of which small sections remain, bordered the two intersecting streams using the streambeds as a ditch, with a wall across the plateau closing the triangle. Piazza d'Armi Every Etruscan stronghold was built on an elevation, and Veii was no exception. Its arx, or citadel, was placed on a bluff delineated by cliffs within the angle of confluence of the two streams, nearly separated from the main ridge by a gully, through which ran a road in the Roman period. An archaeological site, Piazza d'Armi ("military square"), marks the location today. Etruscan League Despite the many mysteries surrounding the Etruscan League, it is well documented that the league was one of the most influential organizations in the Mediterranean. Because the Etruscan civilization was split into a federation of city-states, the league allowed the leaders of each to come together and discuss a variety of topics. Like Congress or the United Nations, the statesmen would discuss issues regarding laws, taxes, and territorial disputes. Although little is known about the league itself, scholars have found that the city-states shared a common religion, as well as different variations of the same language. The leaders met on a yearly basis at the Fanum Volumnae Sanctuary near Orvieto. Art Unlike the ever-iconic marble statues found throughout Rome, Veii's sculptures were made of terracotta. Constricted to the natural materials surrounding the region, the majority of ceramic artifacts and statues were constructed of the clay that surrounded the rivers around the site. Most ceramic vessels were decorated with innate detail. Depictions of everyday life within the Etruscan community were very common. Many uncovered vases and bowls portray images of farmers harvesting crops and raising animals, as well as blacksmiths in the midst of working in a raging fire. Battle victories, as well as other