The Krn Room displays the initial attacks along the Soča River after Italy entered the war on May 24, 1915.

The Italian troops of alpini achieved the first major victory on the Isonzo Front with the conquest of Mount Krn, when they wrested this 2244 metres high mountain from the hands of its Hungarian defenders on June 16, 1915.

The central exhibit in this room is a 1:1000 scale relief model of Mount Krn, Mount Batognica and the neighbouring mountains. Many visitors study the model carefully before taking the tour of this highest part of the former battlefield or upon their return from this unforgettable outdoor museum.