Trongsa, the ancestral home of Bhutan’s royal family, is renowned for its Trongsa Dzong, one of the most impressive dzong in Bhutan, built in 1647. The dzong’s labyrinth of temples, corridors, offices and living quarters for the monks add up to a masterpiece in Bhutanese architecture. Located close to Trongsa is the Gantey valley and Phobjika valley, well known as one of the last wintering grounds of the endangered and graceful black-necked cranes that fly in from northern China, Mongolia and Siberia.