Mutianyu Great Wall is located at North part of Beijing, It's about 75km away from downtown Beijing or Beijing Capital Airport, and It takes about an hour and a half to drive there, Mutianyu Great Wall Tourist Zone is surrounded by mountains and possesses beautiful scenes, The place is taken as the Most Beautiful Site of the Great Wall at home and abroad. The most important is less crowded. It is 20 watchtowers open to public. During the Ming and Qing dynasties, the Temple of Heaven was the place where the emperors came to worship the God of Heaven and prayed for good harvest, The Temple of Heaven is not only the largest group of temple building in China, but also the largest heaven-worshipping architecture in the world.