SAN is an augmented reality app that uses GPS to locate virtual 3D objects in physical environments. The scale and perspective of the objects are related both to the physical space and viewers viewpoint. SAN offers a new way to interact with buildings, cities and even social structures otherwise hidden from our unequipped gaze. The current release of SAN, in particular, offers a new ways to explore the invisible layers of cultural institutions, such as major museums, galleries and 2017 Venice Biennial. Project SAN is developed by artist Gints Gabrans (www.gabrans.com). SAN can be downloaded for free.