Lama Temple, also named Yonghe Lamasery, is Beijing's principal and largest Buddhist Temple. It was built in 1694, as part of the city wall for Emperor Yongzheng, prior to him rising to the throne in 1722. Yongzheng’s son - Emperor Qianlong, sent for 300 Tibetan monks and 200 Chinese students and housed them in the palace in 1744. From then on, the dwelling served as a temple and monastery, and considered one of the greatest centres of Buddhism outside of Tibet. Beijing Zoo is home to around 450 different species and has a population of some 5,000 animals. Some of the most popular attractions among visitors are the wild rare animals of China itself, such as the giant pandas, golden monkeys, milu deer and northeast tigers. However, the collection is far from restricted to those species found only in China; the polar bears, American bison, zebras, kangaroos, giraffes and elephants also draw large crowds.