Trongsa Dzong is an impressive fortress located in the Trongsa district of Bhutan. It is the largest dzong fortress in Bhutan and one of the most iconic landmarks in the country. The fortress was built in 1644 by Chogyal Minjur Tempa, who is also known as the first governor of Trongsa. It is situated on a high ridge overlooking the Mangde River and has been strategically placed to control the east-west trade route.

The dzong is a massive structure with a series of courtyards, temples, administrative offices, and living quarters for monks and officials. The building is constructed in the traditional Bhutanese architectural style with thick walls, towering watchtowers, and intricate wood carvings. The fortress is considered to be one of the best examples of Bhutanese architecture and is a testament to the country's rich cultural heritage.

Trongsa Dzong has been an important center of religion, culture, and governance in Bhutan for centuries. It has been the ancestral home of the Wangchuck dynasty, the current royal family of Bhutan, since the early 20th century. Today, the dzong is still used as an administrative center for the Trongsa district and is also a popular tourist attraction. Visitors can explore the courtyards, temples, and other structures within the fortress and learn more about Bhutanese culture and history.