Villa Osio is spread over an area of 2,500 square meters and surrounded by a 25,240-square-meter park of great naturalistic value, open daily from dawn to dusk. Concerts by Italian and international artists are hosted here in seasons that allow.

The Villa, previously owned by Magliana gang boss Enrico Nicoletti, was assigned to the City of Rome after confiscation. A plaque placed at the entrance displays the names of Mafia victims and testifies to the victory represented by its return to the city and its citizens.