The Jokhang Temple, situated in the heart of Old Lhasa, it houses Tibet's most precious religious relic, a golden Shakyamuni Buddha which was brought as a gift by the Chinese Princess Wen Cheng on the occasion of her wedding to the Tibetan King, Songtsen Gompo. Surrounding the Jokhang Temple is the bustling Barkhor Market place, which is the religious and social focus of Lhasa. Later in the day visit the Potala Palace, this legendary palace built atop a single hill is synonymous with Tibet by the first foremost king Songtsen Gompa. The 5th Dalai Lama expanded it to its present structure during the 17th century. This 13 story 1000 room citadel served as the headquarters of the former "Monastic-state" of Tibet and was home to successive Dalai Lamas, who from the latter half of the 18th century used it as their Winter palace. And largest and second largest monasteries Depong and Sera, university and Buddhist learning center.