Trongsa is the most central district of Bhutan and the geographic centre of Bhutan is four hours by road from Wangduephodrang.It was the dzong where future Kings formalised their ascension as Chhoetse Penlop before ascending the Golden Throne. Trongsa Dzong is the place where the investiture ceremony of His Royal Highness the Crown Prince, Dasho Jigme Khesar Namgyel Wangchuck, as the Chhoetse Penlop has taken place in October 2004.

This is the most impressive dzong in the kingdom, and can be seen from a great distance in its strategic position high above the Mangde Chhu. It has been described as being perched so high on a mountain that the clouds float below it. It is one of the most aesthetic and magnificent works of traditional Bhutanese architecture. The dzong is a rambling collection of buildings that trails down the ridge, and it has a remarkable succession of street-like corridors, wide stone stairs and beautiful stone