Thangtong Gyalpo, hailing from Tibet, built iron chain bridges through Tibet, Bhutan, and elsewhere in the Himalayas, in the 15th century. He is now known as Lama Chakzampa, or Iron Bridge Lama. The last surviving of the 600 year old bridges in Bhutan was washed away by floods in 2004.

This is a recreation, using a lot of pieces from the original bridge.