Tower of Rossenella, Medieval tower in Canossa, Italy

Tower of Rossenella is a medieval fortress structure built on volcanic rock with three distinct levels connected by internal passages and viewing positions. The building's compact design minimizes exterior openings to reduce vulnerability from attacks.

The tower is first documented in the inventory of assets left by Azzo da Correggio under the jurisdiction of Rossena Castle. In 1402 Gian Galeazzo Visconti granted it to the brothers Ottone, Giacomo and Giovanni, sons of Nicolò de' Terzi, his allies against Giovanni I Bentivoglio; it later returned to the Da Correggio. In 1558 troops of Duke Alfonso II d'Este damaged it, and it remained a ruin until restoration ended in 2007.

The names Rossenella and Rossena come from the reddish volcanic rock of the area, the same rock that gives the Rupe di Campotrera reserve its character. The tower is also called Guardiola, from its watch duty: it was the outpost of the castles of Rossena and Canossa and served mainly for signalling. It belongs to the circuit of the Castles of the Duchy of Parma, Piacenza and Pontremoli.

Visitors reach the tower by following a marked trail from the nearby Castle of Rossena located on Strada Provinciale 54 in Reggio Emilia province. The path is steep and rocky, so sturdy footwear and physical fitness are necessary for a comfortable visit.

The tower has four levels, not three: the ground floor had no outside entrance and was reached by an internal ladder from the first floor, where the keeper lived and entered by an external ladder that could be pulled up. The top floor served the soldiers watching for enemy forces.