Located in the mountainous landscape of Gyeongju, South Korea, the Korea Hydro Nuclear Power Headquarters gradually slopes upward as if growing out of the landscape. The design by H Architecture, in collaboration with Haeahn Architecture, creates a structure large enough for the required program without disturbing the rural context. The form is derived from the orbital lines of electrons, capturing the nature of hydro nuclear power with elliptical and radiating lines and shapes. The inner facade faces primarily south and has a modular system of prefabricated fins that allow for optimal sunlight in the office spaces, while also preventing direct solar radiation and heat gain. The outer facade, which primarily faces north, has a panelized elliptical surface of perforated oxidized steel articulated with a pattern created from the image on the Emille Bell, a national treasure and well-known local cultural icon.