 The main entrance is at the axial centre of the building , comprising a temple @-@ like portico standing in front of the doors — a relatively common motif of administration buildings of the time . The entrance arrangement is regarded by some people as slightly pompous : the entrance and lift doors are of bronze , and the ceiling and walls of the porch are clad in bronze plate and copper friezes . The inner lobby has two curved staircases with a sheet aluminum treatment , and marble walls with a zigzag pattern . The axial centre at the rear of the building has a round glazed façade ; here , the view of the buildings at the rear of the site ( the " casino " ) is maximised by the curved walls that afford vistas to the subsidiary buildings 100 m distant , separated from the main building by parkland and a pool . During the American occupation of the building , this rotunda housed a small kiosk ; later , it was used as a conference room . Nowadays , it is called the Dwight D. Eisenhower room and accommodates a café . 
