This desire to preserve the open space while creating an intensive attraction, has become the central theme of the design proposal for The Boston Museum Project. The base of the complex, accommodating a pedestrian street, museum information center, theater, education facilities, and cafes is formed by a mound; an undulating park whose roof forms an extension of the Greenway park system, under which are components of the museum program. And then, as if floating above, a major sculptural object, transparent and reflective, a structure that accommodates the museum's Grand Hall, l'Orangerie, and permanent exhibits.