Lhasa, renowned as the "sun city", is one of the highest cities in the world. Among Lhasas most treasured landmarks are the Potala Palace, a masterful symbol of Tibetan Buddhism, and Jokhang Temple, the most sacred and important temple in Tibet. Visitors to Lhasa are often mesmerized by the majestic views along the Lhasa River (also known as Kyichu River), and the Barkhor, a colorful area of narrow streets and popular devotional practice for pilgrims and locals.Free shuttle bus service.