Bhutan, a Buddhist kingdom on the Himalayas’ eastern edge, is a land of monasteries, fortresses (or dzongs) and dramatic topography ranging from subtropical plains to steep mountains and valleys. In the High Himalayas, peaks such as 7,326m Jomolhari are a destination for serious trekkers. Taktsang Palphug (Tiger’s Nest) monastery, a sacred site, clings to cliffs above the forested Paro Vall