Massive Gothic basilica dominating Piazza Maggiore, begun in 1390 and still unfinished. The facade is half marble, half bare brick — a permanent record of papal interference and Bologna's ambitions.
Location
Centro Storico, Bologna
Map
Insider Intel
Walk inside (free entry to nave) and look for the meridian line in the left aisle — a sundial built by astronomer Cassini in 1655, running 67 meters across the floor. It was used to reform the Gregorian calendar. The chapels contain Renaissance frescoes, but the unfinished rawness is more interesting than the decoration.
Morning when light enters the high windows. The basilica is a public building more than a devotional space — locals cut through, students meet on the steps outside, masses are said but the atmosphere is civic, not hushed.
Construction began in 1390 with the goal of making it larger than St. Peter's in Rome. Pope Pius IV blocked expansion in 1562, fearing Bologna's ambitions. The facade remains half-finished — bare brick where marble was meant to go. The interior is the 5th largest church nave in the world. The meridian is a scientific instrument, not a religious ornament — Bologna's university culture embedded in the church. Napoleon was crowned King of Italy here in 1805. It's a building that records political conflict as much as faith.