 The creation of Parco Nazionale del Gran Sasso e Monti della Laga in 1993, which Castel del Monte lies entirely within, assures that the land surrounding the town will remain forever wild, thus preserving Castel del Monte in a near pristine state.Castel del Monte's biggest tourist event is "La Notte delle Streghe" or "The Night of the Witches", an annual event for which the town is well known.Held in mid-August, thousands visit the town for the late-night spectacle where the entire historic district serves as a stage for residents who play the roles of townspeople and witches in a folk drama in the local dialect known as "Castellano".