Walls, towers and gates Torre di Marmirolo Initially, the Tower of Marmirolo was part of an ancient castle. In July 1700 the tower collapsed, but not much time passed and was replaced by the citizens by another tower. In the 50s of the last century, a new bell was added to the structure by the Municipal Administration. The tower took its present appearance after some restorations carried out in the years 1872-1873 and 1995.