The Basilica of San Petronio is one of Bologna's iconic landmarks. This magnificent Gothic-style church, begun in the 14th century, remains unfinished to this day. Its façade, crafted from red brick and white marble, exhibits intricate carvings. Inside, it boasts one of the longest naves in the world and the famous Meridian Line (Sundial of Cassini), designed by astronomer Cassini to accurately track time and seasons. More than a religious site, San Petronio Basilica embodies Bologna's rich history and scientific heritage, drawing art lovers and historians alike.

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