La Rocca d’Anfo is a complex of fortifications, overhanging Lake Idro and is on 50 hectares, has been expanded, rebuilt, sometimes destroyed and what is today is the union of 2 Rocche: a Venetian, the oldest in the south, and the Napoleonic one. Its origins date back to the 15th century. The first block that you meet is the Venetian line, from the street the Venice battery looks like a church, because before the last war they built a bell tower on the rooftop. The Venetian staircase consists of a first row of 162 steps and from there up, another 336. The steps are sheathed in two nimble walls in which the loopholes opened for the arquebusiers. The rebirth of the Rocca d’Anfo came with the arrival of Napoleon, who inserted it as a defensive system against Austria. The climb continues in a gallery, between skylights, until you reach the highest part, an observatory tower with a perfect geometry in granite and bricks. It took 10 years to build this, but they were not able to complete the work.