Trongsa Dzong, also known as Choekhor Rabtentse Dzong, is the largest fortress in Bhutan, built in 1644 by Zhabdrung Ngawang Namgyal.
Trongsa Dzong, also known as Choekhor Rabtentse Dzong, is the largest fortress in Bhutan, built in 1644 by Zhabdrung Ngawang Namgyal.