What makes Viru Prison different from other Estonian prisons are the buildings that are connected with one another by galleries, which enable the prison to keep the imprisoned in closed rooms within the whole period of detention.
Võrreldes teiste Eesti vanglatega teeb Viru vangla eriliseks see, et siin on kõik hooned omavahel galeriidega ühendatud, mis võimaldab vanglal kinnipeetavat terve kinnipidamisaja jooksul kinnistes ruumides hoida.