The Main Exhibition Hall is located to the right from the main entrance of the National Library. The hall with its dolomite walls is by its interior design the finest Library exhibition space which is decorated with two wrought gates (A flock of birds by Taivo Linna, 1992-1993). The hall is supported by a central four-sided pillar. The wall space of the gallery is divided into six blind niches that allows an exposition to be separated into parts.
Due to their close location, the Main Exhibition Hall and the Foyer Gallery may be used as a single exhibit space.