Abstract: Internally illuminated extrusion architecture comprising a plurality of internally illuminated extrusion-based modular members capable of being connected to form a display structure uniformly radiating diffused light from its interior spaces. A continuous glowing lighted effect emanating from the structural components of the architecture draws the attention of a viewer. Members of varied shape and lengths accommodate different scale structures and foot-prints. T-guides integral to the extrusion-based members allow for unique customization through incorporation of banners, fabric sheets, large scale graphics, shelf assemblies, panels, fascia attachments, skin attachments, headers, canopies, bars, storage towers, tables, and/or workstations at any desired point along the longitudinal axis of the members.