Oct. 20 Drive to Tongsa The first sight of the Tongsa Dzong, the largest in Bhutan, is from across the valley. But the road winds another 12.5 miles before we’ll actually get there. Magnificent views around every turn! Built in 1647, it is the largest dzong in the country. It is also the ancestral home of the Royal Family, and both the first and second kings ruled the country from Tongsa. The Dzong sits on a narrow spur that sticks out into the gorge of the Mangde-Chu River and overlooks the routes east, west and south. It was built in such a way that in the olden days, it had complete control over all east-west traffic. This helped to augment the strategic importance of the Dzong which eventually placed its Penlop (regional ruler) at the helm of a united country when His Majesty Ugyen Wangchuck became the first king of Bhutan. To this day, the Crown Prince of Bhutan becomes the Penlop of Tongsa before ascending the throne, signifying its historical importance.