The Guggenheim Museum’s large central open space in New York is called the rotunda. It forms the visual and spatial heart of Frank Lloyd Wright’s building, with the museum’s spiral ramp curving around it.
Visitors can look across the open volume from different levels of the ramp. This arrangement creates long sightlines between artworks, visitors, and the building’s architecture. A glazed dome above the rotunda brings natural light into the central space, although the lighting and exhibition conditions have been modified over time.
Wright designed the museum as an alternative to the conventional sequence of enclosed galleries. The ramp begins near the entrance and rises in a continuous spiral, allowing visitors to move gradually through the collection and exhibitions. The rotunda makes that movement visible from many points inside the building.
The term “rotunda” refers to the central circular space, not the spiral walkway itself. The walkway is commonly called the ramp or spiral ramp. This distinction helps separate the building’s main architectural elements.