Drukgyal Dzong :

Drukgyal Dzong, with a picturesque village nestling below its ramparts, was built by Zhabdrung Ngawang Namgyal  in 1646 to commemorate the victory of Bhutanese over the allied  Tibetan-Mongolian forces. 

Though largely destroyed by fire in 1951, the towering outer walls remained an imposing sight till it got fully renewed in just recent time. The Drukgyel Dzong as a defense fortress is said to have housed the finest armory in the country.

On a clear day , you can get the splendid view of Mountain Jomolhari from the approach road to Drukgyel Dzong.