The cathedral was built directly over the paleochristian basilica of San Vigilio, which contains the original sarcophagus of the saint.
It hosted the solemn sessions of the Council of Trent, the most significant ecumenical council of the Counter-Reformation.
The structure features a characteristic 'Staircase of the Lions' (Porta dei Leoni) on the northern side, decorated with medieval sculptures.
The interior contains a 14th-century circular 'Wheel of Fortune' rose window carved into the stone of the southern transept.
The cathedral displays the original papal bull issued by Pope Pius IV confirming the acts of the Council of Trent.
The building was designed by the architect Adamo d'Arogno, who also worked on several other significant Romanesque buildings in the Alps.
Archaeological excavations beneath the cathedral are accessible as a museum, displaying Roman and Early Christian ruins.
Trento Cathedral, also known as the Cattedrale di San Vigilio, is a Romanesque-Gothic structure serving as the seat of the Archbishop of Trento. The edifice is characterized by a prominent rose window on its western facade and an octagonal tiburio covering the crossing. Built over the tomb of Saint Vigilius, the city's patron saint, the site incorporates foundations from an earlier 6th-century basilica. Between 1545 and 1563, the cathedral served as the primary venue for the sessions of the Council of Trent. The interior features a central nave flanked by two side aisles with decorative arches supported by robust pillars. Fragments of medieval frescoes remain visible within the northern transept. The exterior stonework utilizes local Botticino marble and red limestone typical of the region. An adjacent bell tower, reconstructed after a collapse, stands to the south of the main structure.
From the center of Piazza del Duomo, looking directly at the western facade and the rose window.
Visit the underground 'Spazio Archeologico' to view the ruins of the original 6th-century basilica foundations.
Walk around the exterior perimeter to observe the differences in architectural style between the Romanesque base and later Gothic additions.
Combine your visit with a trip to the nearby Diocesan Museum located in the adjoining Palazzo Pretorio.
Do not attempt to enter the cathedral during active religious mass services unless you are there to worship.
The underground archaeological area is often closed on Mondays.
Modest attire is required; shoulders and knees must be covered. Silence is strictly observed during services.