The Punakha Dzong in the background is located at the confluence of the Pho Chhu (father) and Mo Chhu (mother) rivers in the Punakha–Wangdue valley.

The Punakha Dzong, also known as Pungtang Dewa chhenbi Phodrang, is the administrative centre of Punakha District in Punakha, Bhutan. Constructed by Ngawang Namgyal, 1st Zhabdrung Rinpoche, in 1637–38, it is the second oldest and second largest dzong in Bhutan and one of its most majestic structures. Wikipedia