This 17th century fort was built just above the ancient temple inspired by a high monk centuries ago. The fort is essentially impregnable and then for the unlucky warriors (built to defend against invading Tibetans) who might have gotten inside (none did), such warriors would have needed a road map to make a way through the many narrow passageways to warren after warren. The photo through the window shows the downhill sides on two sides. The photo of the stream shows the steep canyon on the other two sides. Wonderful architecture. Today it serves as a combination of government offices, a monastery, and a temple. Another photo shows the view of the fort from our hotel room across the canyon. Across the canyon is our hotel perched on the side of a mountain. A photo of the fort was taken from our room.