Grazzano-Visconti Castle is a medieval fortress located in the Emilia-Romagna region of northern Italy. It was originally built in the 14th century by the Visconti family, who ruled the city of Milan at the time, and was later acquired by the Grazzano family.

The castle underwent several renovations and expansions over the centuries and today it stands as a fine example of medieval and Renaissance architecture. The castle features a moat, a drawbridge, a tower, and a chapel. The interior of the castle is richly decorated with frescoes, stuccos, and precious furnishings.

In addition to its architectural and historical significance, Grazzano-Visconti Castle is also renowned for its beautiful park, which covers an area of 10 hectares and is home to a variety of rare plants, including a 200-year-old wisteria tree. The park also features several ponds, fountains, and statues.

Today, the castle is open to visitors and hosts various cultural events throughout the year, including exhibitions, concerts, and festivals. It also offers guided tours, which provide visitors with an in-depth look at the castle's history, architecture, and art.