1. San Petronio Basilica, also known as Basilica di San Petronio, is one of the most important and iconic religious sites in Bologna, Italy. Construction of the basilica began in 1390 and was intended to be the largest church in the world. However, it was never completed as originally planned.

The basilica is dedicated to Saint Petronius, who was the bishop of Bologna in the 5th century. It is located in Piazza Maggiore, the main square of Bologna, and its facade features a mix of Renaissance and Gothic architectural styles.

One interesting fact about San Petronio Basilica is that it was intended to have a length of 132 meters, making it larger than St. Peter’s Basilica in Vatican City. However, due to financial constraints and controversies with the city’s government, the construction was halted and the basilica remains unfinished. As a result, the facade is incomplete, lacking the originally planned marble facing and decorative elements.

Inside the basilica, visitors can admire the beautiful interior, which features an impressive main altar and several chapels. The Trivium, located in front of the main altar, is a masterpiece of Renaissance architecture designed by Antonio di Vincenzo. It consists of three portals representing the celestial, terrestrial, and infernal realms.

2. The San Petronio Basilica is open to visitors from Monday to Saturday, with varying opening hours depending on the season:

- From April to September: 10:00 AM to 7:00 PM

- From October to March: 10:00 AM to 6:00 PM

It is closed on Sundays and during religious services. For up-to-date information on opening hours and any closures, it is recommended to check the official website or contact the basilica directly.

Phone: +39 051 231 415

3. Admission to the basilica is generally free. However, there is a fee to visit the rooftop terrace, which provides panoramic views of Bologna. The fee for the terrace is usually around 3-5 euros.

Transportation to San Petronio Basilica is easily accessible as it is located in the center of Bologna. Visitors can take public transportation, such as buses or trains, to reach the city center. There are also parking facilities available nearby for those traveling by car. It is advisable to check local transportation schedules and parking availability before planning a visit.