The Charnel House was built on Gradič Hill near the Church of St. Anton. The Stations of the Cross are erected along the road, leading to the Charnel House.

In 1938, the Charnel House was opened by Benito Mussolini. It has an octagonal shape and is constructed with three concentric circles that narrow as they rise. The Church of St. Anton, consecrated in 1696, is built at the very top.

Mortal remains of 7,014 known and unknown Italian soldiers who had been killed in the First World War were carried to the Charnel House from nearby army cemeteries.