This amazing castle in the small town of Locarno is one of the oldest buildings in Switzerland as it has existed since the year 883, and throughout the ages it has been restored several times, and it was supervised by the world artist Leonardo da Vinci in the fifteenth century, and it is one of his largest works. Therefore, this castle is an important shrine for fans of the artist's works. The castle is decorated in a medieval style, where gray stone blends with wooden decorations and details.