Completed in 1420 Ming Dynasty, the Temple of Heaven, called Tian Tan in Chinese, served as a place for Ming and Qing emperors to pray and make sacrifices. It is one of the largest temple complex in China. The classic design demonstrated the balancing of the Chinese architecture and symbolism, and were inscribed by UNESCO as cultural heritage in 1998. Tablets of the ancestors are stored in the memory of the ancestors for the emperor to worship. Same as Forbidden City, the temple could only be accessed by the imperial families and his servants during the empire governing, no common folks could go near the temple. As for now, the park of the temple is one of the most popular places for practising tai ji quan(Chinese exercise).
Temple of Heaven: an Imperial Sacrificial Altar in Beijing Beijing,