The Roof of the World - S1.E4

This episode focuses on the people and terrain of Tibet, which is now part of China. He visits various Buddhist temples, the Dalai Lama's old palace (now a museum), a night club and some more temples. He visits a barren lake in the middle of nowhere which is greatly revered by the Tibetan People, who go on devotional walks around the lake. These take 18 days. He also spends time with traditional Yak herders living in tents and helps with various tasks such as milking and cooking. Watch out for the teletubby! He then attends a large horse fair/festival in Yushu and turns south to follow the Yangtze River.