sentences:  Later, the Dalai Lama donated this mandala to the Smithsonian Institution in Washington, DC.Kumbum Monastery, one of the six largest monasteries of the Gelug school of Tibetan Buddhism, is the birthplace of Je Tsongkhapa (founder of the school which is now headed by the Dalai Lama).Kumbum Monastery was once the home of 3,600 monks and well revered by the four well known Buddhist Colleges for higher learning