The space outside houses testimonies of Roman archaeology and industrial.
They are some examples of machinery used until the mid-twentieth century, the extraction and processing of marble in Quarries and laboratories craft the nineteenth locomotrice steam, the last wagon of marmifera for rail transport Valley Block, the great multilama frame and the wheel fisherman.
The garden receives valuable archaeological finds such as caesure (cut) and semi-architectural (Capitals, columns, column bases) Roman, discovered in the marble quarries.