The Museum Picasso-coleccion Eugenio Arias was the first Museum created and opened by the community of Madrid. Located from 1985 in rooms of the Town Hall of Buitrago del Lozoya, There are a collection of works that Picasso spent and gave to that was his Barber over the past 25 years of his life, from 1948 to 1973: Eugenio Arias, who met in Vallauris (South of France), During his exile.

Picasso was giving his friend and confidant several works as proof of his affection. At the end of his exile, The Barber of Picasso wanted the collection to stay in their homeland, Buitrago, giving his collection in 1982. As a result, the Museum has a collection of works of varied nature: drawings, graphic work, photography, ceramics, pyrography and a short, as well as posters of exhibitions and books devoted artist Eugenio Arias.

Since its reopening, the 11 in January of 2009, After a complete remodel, the Museum organizes temporary exhibitions that the figure and work of Picasso highlights and activities, his relationship with Eugenio Arias and enhance the cultural offer of the Sierra Norte de Madrid. In addition, two Saturdays per month, they are dynamic visits, workshops and mediation of the collective pedagogies invisible hand.