The visit to the Prisons begins with a small descending staircase leading from the Sala del Magistrato alle Leggi into a narrow corridor, one of the two passageways of the famous Bridge of Sighs.
From the bridge, visitors enter the New Prisons, a 16th-century building designed for incarceration, complete with rooms for magistrates. Built on the other side of the canal to the side of the Palace, the structure was intended to improve the conditions for prisoners with larger and more light-filled and airy cells.
For its time, the New Prisons represented one of the earliest, if not the very first, examples in Europe of a standalone, purpose-built state prison designed as a single-use block structure.