In the recent years, a big effort was made to develop deep photometric surveys aimed at studying galaxy structures down to the faintest levels of surface brightness. The VST Early-type GAlaxy Survey (VEGAS) has played a pivotal role in the field, by providing new insight on the faint regions of galaxies and on dwarf galaxies in all environments. About 30% of the VEGAS observing time was dedicated to the Fornax deep survey (FDS), the new multi-band deep survey of the Fornax cluster, covering the whole cluster out to the virial radius, with an area of 26 square degrees around the central galaxy NGC1399 and including the SW subgroup centred on the other bright member NGC 1316. With FDS we can map galaxy stellar halos down to μg ≃ 29−31 mag/arcsec2, detect new and faint (μg ≃ 28−30 mag/arcsec2) features in the intracluster space and trace the spatial distribution of candidate globular clusters inside ∼ 0.5 deg2 of the cluster core. Recently, the light and colour distribution of all the bright early-type galaxies inside the virial radius of FORNAX have been studied and a first comprehensive view of the galaxy structure and evolution as function of the cluster environment has been provided. In this talk I will review the main results obtained from VEGAS/FDS surveys.