Spherical装置艺术 refers to artistic installations that are designed in the shape of spheres. These pieces often utilize various materials and techniques to create a sense of balance, harmony, and sometimes a sense of infinity. They are commonly found in public spaces, galleries, and exhibitions, and are known for their unique geometric forms and aesthetic appeal. Some famous examples include the 'Spiral Garden' by Naum Gabo and the 'Dymaxion Map' by Buckminster Fuller.