Architectural space is a term used to describe the physical space created by an architect. It includes elements such as spandrels, which are curved or triangular spaces between two arches or between an arch and a rectangular frame; atriums, which are large open spaces within a building; ionic, which is a type of column with a base and a capital that curves inward; and ogees, which are curved moldings in the shape of an S. All of these elements come together to create a unique architectural space.