This monument was designed by engineer Gino Zani and inaugurated in 1927. The altar is dedicated to the San Marino volunteers died during the wars for the independence of Italy and revolutionary uprisings. It has a double staircase leading to the Votive Chapel, surmounted by an obelisk. On the opposite wall is a plaque with all the names of the 138 fallen between 1845 and 1918, to whom were added the names of the two died in the liberation struggle between 1943 and 1945.