Castello del Valentino is a historic palace in Turin, Italy. It was originally built in the 16th century for the House of Savoy, one of the most important royal families in Europe at the time. The palace is located on the left bank of the River Po and is surrounded by beautiful gardens and parkland.

The castle's architecture reflects the Renaissance and Baroque styles that were popular in Italy during the time of its construction. It features a beautiful central courtyard with arcades and a large ornate staircase that leads to the upper floors. The palace also boasts beautiful frescoes, stuccos, and sculptures throughout the interior.

Over the years, Castello del Valentino has been used for various purposes. During World War II, it was used as a military hospital. Later, it became the headquarters of the Polytechnic University of Turin, which now uses the palace for conferences, events, and exhibitions. Today, the castle is open to the public and visitors can take guided tours of the interior and gardens.