“Om Ah Hung Ney” are the three holiest sites of Guru Rinpoche since their names begin with the letters, Om, Ah, and Hung, which forms the Mantra, “Om Ah Hung”.
Hungrel Dzong, a Fortress on the Holy Site of Guru Rinpoche
Hungrel Dzong is the sacred site of Guru Rinpoche in Paro where a five-story structure Namgyal Khangzang was built by Pha Drung Drung Gyelchog.