Yumbu Lakhang was built in the second century B.C. For the first King of Tibet, “Nyatri Tsenpo” it is located on the southern side of Tsetang, the prefecture seat of Lhoka. Originally only the central building was built as a palace, but the chapels we can see now were constructed later and the golden roof was made during the time of fifth Dalai Lama. It was the main palace for the first until the 32nd King of Tibet.
During the time of Lhatho Thori Nyentsen, the 28th King, the first Buddhist scripture is believed to have descended from the sky onto the roof top of this palace. But other historians say that the scripture was brought to Tibet by two Indian masters,. As nobody could understand the scripture, it was hidden in the palace until it was translated into Tibetan language in the 7th century after Sambhota created the standard Tibetan script.
The palace is built on a hill and there is a beautiful view over the fertile valley. The important statues inside the palace include Avalokitesvara, Nyari Tsenpo, Lhatho Thori Nyentsen, Dongtsen Gambo, Trisong Detsen and Sambhota etc. for the local people it is a sacred pilgrimage site and at the same time it is also an important tourist site in Lhoka.