The dzong built in 1648, is a massive structure with many levels, sloping down the contours of the ridge upon which it is built. The dzong’s highly strategic position, on the only connecting route between Eastern and Western Bhutan allowed the Trongsa Penlop to control travel and trade in the country effectively placing him in command of the whole of the Central and Eastern regions of the country.
Of the many festivals held in various parts of Trongsa, the grandest is the three day annual Tshechu. This festival bring together people from all walks of life and falls sometime in the month of December. In addition to traditional mask dances, visitors can witness the unfurling of the sacred Thongdrol and receive blessings from high ranking monks. People also receive blessings from the sacred Nangtens that is opened during the last day of the Tshechu.