A view of the wall paintings scheme of the College of the Augustales at the archaeological site of Herculaneum, Italy. This site is an outstanding example of the way in which decorated surfaces can define an architectural space and contribute to the significance and value of a site. The GCI is collaborating with the Herculaneum Conservation Project to ensure the long-term preservation in situ of decorated architectural surfaces at Herculaneum. Photo: Alessandra De Vita.