The potala is one of the great wonders of world architecture. Potala is name after the mount Potala the adobe of Avalokitesvara. the winter residence of successive Dalai Lama. Potala was build in Seventh century by Songstan Gampo on the hill called Marpo ri (130 meter high)which house his retreat cave on it. Later fifth Dalai Lama builds his palace on the ruins of Songtsan gampo’s palace. Since its construction it has been the home of each successive Dalai lama. And winter palace after the construction of Norbulingka palace. It can be best describe with the word self contained world with its own school, chapel, and even house Tombs of many successive Dalai Lamas.