Structures are what primarily define the form and space of architecture. Structures for buildings are composed of various structural components such as columns, walls, beams, trusses, arches, cables, slabs, shells, etc. Studies on architectural structures (in basic structures classes) are typically based on these structural components in an attempt to deal with most major structural components in architecture. While this approach is good to understand various structural components, how to configure them to create desired forms and spaces of architecture can still be very challenging for architects. This seminar studies structures based on various overall configurations of forms and spaces of architecture. Based on certain forms and spaces, different structural design alternatives are investigated through cases studies and alternative design studies with due consideration of architectural design, structural efficiency and other related design issues.