Submerged Commercial Plaza Case

Quick answer：

A submerged commercial plaza case refers to an example of a commercial complex designed to be partially or fully below ground level. These structures are often used in urban areas where space is limited, and they can offer a unique blend of retail, entertainment, and residential spaces. Submerged plazas can include features like parking garages, shopping centers, and recreational areas, integrating them seamlessly into the urban landscape. An example of such a project could be the 'Shanghai World Financial Center's basement level shopping mall'.