Punakha Dzong is a fortress-monastery located in Punakha, Bhutan. It was built in 1637-38 by Zhabdrung Ngawang Namgyal, the first unifier of Bhutan, and it served as the country's capital until 1955.

The dzong is situated at the confluence of the Pho Chhu (male river) and Mo Chhu (female river) rivers, and it is considered one of the most beautiful and well-preserved dzongs in Bhutan. Its architecture features traditional Bhutanese design elements, including whitewashed walls, large wooden doors, and a central tower with a golden roof.

The dzong is also known for its intricate and colorful frescoes, which depict scenes from the life of the Buddha and other religious figures. The prayer hall inside the dzong houses a massive statue of the Buddha, as well as other religious artifacts and relics.

Punakha Dzong is an important cultural and religious site in Bhutan and is still used for government and religious ceremonies. It is open to visitors, but certain areas may be off-limits during official functions. Visitors are required to dress modestly and remove their shoes before entering the dzong.