
Beneath the dome, is an added terrace with a remarkable 108 niches filled with stone sculptured deities of the Nyingmapa School's pantheon. They replace the usual five Buddha shrines in defining the content of the stupa-mandala, these images were almost certainly commissioned all at once by Sakya Zangpo in the 16th century, when the present stupa was built or thereafter.
Boudhanath has been included on the list of UNESCO World Heritage Sites.