Sacra di San Michele is a medieval abbey located in the Piedmont region of Italy, near the town of Sant'Ambrogio di Torino. The abbey is situated on the top of Mount Pirchiriano, overlooking the Val di Susa, and is one of the most iconic landmarks in the region. It was founded in the 10th century by Benedictine monks, and over the centuries, it has been the site of many historical events and religious ceremonies.

The abbey is renowned for its impressive architecture, which combines Romanesque and Gothic styles, and for its stunning location atop the mountain. Visitors can climb up a steep staircase to reach the abbey, and once there, they can explore the various halls, chapels, and cloisters that make up the complex. One of the highlights of the abbey is the 12th-century Tower of Bell'Alda, which is 67 meters tall and provides panoramic views of the surrounding countryside.

The Sacra di San Michele has played an important role in the history of the region, and it has been the site of many battles and conflicts. During the Middle Ages, it was a center of religious and cultural life, and it was visited by many pilgrims and travelers. Today, it is a popular tourist attraction, and visitors from all over the world come to see its impressive architecture, stunning views, and rich history.