The Pontifical Villas of Castel Gandolfo, spread over an area of 55 hectares, comprises numerous gardens such as Il Giardino del Moro, the Gardens of Villa Cibo, the Magnolia Garden, and the Belvedere Garden. Villa Barberini, a beautiful mix of botanical and archaeological beauty, is one of the key highlights of Castel Gandolfo. Built during the Renaissance era, on the grounds of the splendid Roman villa of Emperor Albanum Domitian the garden is home to centuries-old holm oak trees, some as old as 400 years.