A presentation on the Cosmological Axis of Yogyakarta delivered by Dr. Eng. Ir. Laretna Trisnantari Adhisakti, M.Arch., or Bu Sita, before researchers of the Taiwan Heritage Society on 29 October 2025 introduced a fresh perspective to the global discourse on heritage city management. Representing the UGM–UNESCO Chair, she not only explained Yogyakarta’s achievement as a UNESCO World Heritage Site but also demonstrated how traditional spatial philosophy can inspire modern approaches to sustainability.