Swayambhu (Devanagari: स्वयम्भू स्तूप; Nepal Bhasa: स्वयंभू; sometimes Swayambu or Swoyambhu) is an ancient religious architecture atop a hill in the Kathmandu Valley, west of Kathmandu city. The Tibetan name for the site means 'Sublime Trees' (Wylie: Phags.pa Shing.kun), for the many varieties of trees found on the hill.