Fort Col De Le Benne, also known as Fort San Baigio, is a fortification built to guard Trento from an attack coming from the municipality of Pergine. Given the fort's location it could dominate the north side of Lake Levico, and part of the Valsuganasperre (Valsugana Blockage). Col De Le Benne and Fort Tenna were an outer ring of the Fortress of Trento. The fort is surrounded by ditches and embankments stretching around in a polygonal shape. Like many forts of the time it was made to withstand sieges, equipped to do this with a generator, a telephone switchboard, a device for optical communications, rainwater collection tanks, and most importantly of all, watertight compartments for storing ammunition. The fort was armed with two 10 cm M05 cannons, four 12 cm M80 fortress guns, and a fixed dome used for observation. In 1902, the two 10 cm howitzers were mounted in rotating armored domes and a rotating observation dome. Despite being renovated so recently, Col De Le Benne played a relatively minor role in World War I.
