The Villa Castiglioni Park is part of the projects financed by the PNRR funded by the European Union NextGenerationEU, intervention 2.3 for historical parks and gardens (CUP H66C22000040006). Today the park is being renovated and not accessible in almost all but we will give visitors the opportunity to enter, obviously with us owners or a guide, in a small, well-defined area for safety, to admire the monumental oak, second in size of the Marche, among the largest oaks in Italy (ID 04/C704/MC/11). We will tell the story of the villa and its park, the family and the oak tree with technical details on this typical tree and of course describe the project of the park.