Louvre Palace areas, and parking areas, as well as an auditorium, a tourist bus depot, and a cafeteria, was constructed underneath the Louvre's central courtyards of the Cour Napoléon and the Cour du Carrousel. The ground-level entrance to this complex was situated in the centre of the Cour Napoléon and is crowned by the prominent steel-and-glass pyramid (1989), the most famous element designed by Pei. In a proposal by Kenneth Carbone, the nomenclature of the wings of the Louvre was simplified in 1987 to reflect the Grand Louvre's organization. Corresponding to the three pavilions through which the public must pass to reach
Leeum, Samsung Museum of Art as well as the museum’s master plan. The main entrance into the lobby of Museum 1 is through Koolhaas’s glass structure. As they enter the museum, visitors follow along on a wooden ramp and pass under a pavilion, demarcating the threshold. He used pilotis which not only lighten the structure but also provide a view of the surrounding buildings and site. The skin of the three story outer building is composed of steel and glass. Inside, a mixing chamber was created between the glass wall and Black box and the placement of lighting, piloti and ramps. The Black concrete box