This info is from Wikipedia. Notice it says 'efforts' - check the pictures out; Ganden Monastery was completely destroyed during the rebellion of 1959. In 1966 it was severely shelled by Red Guard artillery and monks then had to dismantle the remains. Most of Tsongkhapa's mummified body was burned but his skull and some ashes were saved from the fire by Bomi Rinpoche, the monk who had been forced to carry the body to the fire. Re-building has been continuing since the 1980s and the "red-painted lhakang in the centre is the reconstruction of Ganden's sanctum sanctorum containing Tsongkapa's reliquary chorten called the Tongwa Donden, 'Meaningful to Behold'.