The "eye of the tableland", named so due to its strategic position overlooking the Valsugana, it was built by the Austrian-Hungarian engineers between 1910 and 1914 as a presidium on the Italian border, a part of the "Lavarone Group" and framed in the "Tableland Fortresses" within the Austrian system of strongholds standing between 1838 and 1915. Three-floored (and later of a basement as a billet, once the upper ones were available no more), its unassailable position - 1908 mt. above sea level - linked it to the lower Verle Fortress for the water supply, through an electric system. It remained, indeed, not taken: despite the continual artillery fire by the Italian army, it was never caught - while its crumbling state, other than the war, is such also considering the pillage of iron which happened in the postwas period.