Yongbulakhang

The castle of Yongbulakhang sprouting from a craggy ridge overlooking the patchwork fields of the Yarlung valley is reputed to be the oldest building in Tibet. The prominent tower is its most impressive feature. The best part of a visit is the walk up along the ridge above the building. There are fabulous views of Yongbulakhang and the Yarlung Valley. from a promontory topped with prayer flags.