During the First World War, the 'Sector Tactical Command' of Virti had the function of coordinating the military operations taking place on the Alpe Cimbra. It consisted of a series of shelters dug into the rock and a covered building with a telephone and radio exchange which kept it in constant contact with the various sectors of the front. It was also in continuous communication with the nearby and overlooking Monte Rust observatory, which in turn communicated with the entire fortified line of the Highlands on the border with the Kingdom of Italy.
For camouflage reasons, i.e. to escape Italian air detection, it was built inside a deep natural ravine, which made it completely invisible. It was also at the foot of Mount Rust, on the side sheltered from enemy fire.
According to tradition, in May 1916 the Crown Prince Charles of Habsburg stayed there to launch the Strafexpedition, the offensive that made the Italian front retreat to the heights close to the Po Valley.
Of the mysterious complex, of which we don't have much news, the tunnels (currently closed by railings) and the skeleton of the building remain, set among the rocks, creating a suggestive and sepulchral atmosphere.