Genoa's striped black-and-white marble cathedral, consecrated in 1118, whose treasury holds relics brought back from the Crusades and an unexploded British naval shell that struck the church in 1941.
The Cattedrale di San Lorenzo is the principal church of Genoa, rising in the heart of the medieval old town a short walk from the Palazzo Ducale and the old port. Consecrated in 1118 and rebuilt over the following centuries, it presents a striking facade of alternating black and white marble bands, a hallmark of Ligurian and Tuscan Romanesque-Gothic architecture, flanked by carved portals with French Gothic influence and two crouching stone lions on the steps. The interior combines Romanesque structure with later Gothic and Renaissance additions, including the richly decorated Chapel of San Giovanni Battista, built to house relics said to be those of John the Baptist, patron of the city. The cathedral's Museo del Tesoro, an atmospheric underground vault designed by architect Franco Albini, preserves treasures linked to Genoa's crusading and maritime past, among them the Sacro Catino, a hexagonal green glass dish long venerated as the Holy Grail and brought back from the capture of Caesarea in 1101, and a reliquary said to hold the ashes of John the Baptist. In the right nave sits an unexploded British naval shell that crashed through the roof during a bombardment in February 1941 and failed to detonate, preserved as a reminder of the city's wartime survival. As the spiritual centre of the old Republic of Genoa, the cathedral was the setting for state ceremonies and remains the seat of the Archdiocese, standing at the symbolic heart of the historic centre amid the dense carruggi, the narrow medieval alleys of Genoa.
Why it matters
As the cathedral of the Republic of Genoa and seat of the archdiocese, San Lorenzo embodies the city's medieval power, crusading wealth, and survival through wartime bombardment.
Location
Piazza San Lorenzo, 16123 Genova GE, Italy
44.4075, 8.9301 View on map
Highlights
- The banded black-and-white marble facade with carved Gothic portals and stone lions
- The Chapel of San Giovanni Battista honouring the city's patron saint
- The Sacro Catino green glass dish once revered as the Holy Grail in the Museo del Tesoro
- The unexploded 1941 British naval shell preserved inside the nave
- Franco Albini's modernist underground treasury vault
Tips for visiting
- Buy the Museo del Tesoro ticket to see the Sacro Catino and crusader reliquaries beneath the cathedral
- Visit in the morning when light through the rose window illuminates the striped nave
- Respect quiet, respectful conduct as this remains an active place of worship
- Combine with a walk through the surrounding carruggi to the old port and Palazzo Ducale
- Look for the stone marking where the 1941 shell entered the roof above the nave
When to visit
Morning light best illuminates the interior, and weekdays are quieter than weekends; spring and autumn offer the most comfortable conditions for exploring the surrounding old town.
Accessibility
The main floor of the cathedral is reached by a flight of steps from the piazza, which limits step-free access, and the underground treasury is reached by stairs; visitors with mobility needs should enquire at the entrance about assistance.
Frequently asked questions
Is the cathedral free to enter?
Yes, entry to the cathedral itself is free, though a separate ticket of around €6 is required for the underground Museo del Tesoro.
What is the Sacro Catino?
It is a hexagonal green glass dish brought to Genoa after the capture of Caesarea in 1101 and long venerated as the Holy Grail; it is displayed in the cathedral treasury.
Why is there a bomb inside the church?
An unexploded British naval shell struck the cathedral during a bombardment in February 1941 and failed to detonate; it has been kept in the nave as a memorial to the city's survival.