The heart of the building is a generous new atrium, which provides a dramatic space in which to view the largest objects from the Museum’s collection. The relationship between these exhibits and the surrounding galleries has been completely redefined – the Harrier jet, Spitfire, V2 rocket and other iconic objects are suspended to correspond with the gallery displays on each of the floors for the first time. Viewed from the upper levels, the aircraft are framed by a series of large-scale concrete fins. These fins line the atrium and widen as they rise to provide structural support for the aircraft, extended gallery floors and barrel vaulted roof. Terraces between the fins open up visual connections vertically and across the central space, and a new gallery floor suspended beneath the dome of the roof protects the exhibits from direct sunlight.