Fasting Palace(齊宮), Echo Wall(回音壁) & Circular Mound(圜丘) are other major parts of the Tiantan Park.

Fasting Palace(齊宮) was a place where the emperor needed to purify himself before he took part in the sacrificial offering to the Heaven. Prior to the offering, the emperor would spend 3 days in the Fasting Palace to purify himself.

Echo Wall(回音壁) is the circular wall behind the Celestial Annex. Two people on the opposite sides of the annex may conduct a clear conversation by whispering to each other.

Built by Ming dynasty in 1530, Circular Mound(圜丘) was used as an altar for offering sacrifice to Heavenly Deities. It was renovated and expanded, in 1749, by Emperor Qianlong of Qing Dynasty. In the midst of the Circular Mound, there is a circular marble which is called Heavenly Center Stone (天心石).

Burn Offering Stove(燔祭爐) was used to offer burnt offering by the emperor.

北宰牲亭（The sacrificial offering preparation pavilion) is the place where animals were prepared for the sacrificial offerings. The animals, being used as the offerings of the ceremony, were not allowed to be killed by a knife. They had to be beaten to death by a wooden hammer.

北神厨(North Divine Kitchen)which was subdivided into 左神厨(Left Divine Kitchen) and 右神厨(Right Divine Kitchen). It was in these kitchens, offerings, over thirty items, grains, wine, jade, cattle, were being prepared according to the traditional ritual.

神庫(Divine Warehouse), the Main Hall, which kept all the prepared offering items. The night before the ceremony, emperor would come to this hall to inspect the items.

The utensils being used for sacrificial offering in the old days are displayed in the above chambers.

Tian Tan (Altar for the Heavenly Deity), or Temple of Heaven, was built in 1420 by Ming Dynasty and it was later expanded and remodeled by Qing Dynasty. The altar was used by the emperors of Ming and Qing Dynasties to make their sacrificial offerings to the Deity in Heaven. It became a park and was opened to public in 1988. The architectures in this park would give you insight of the philosophy and religion of these two dynasties and their practices.

Imperial Hall of Heaven(皇乾殿)was a hall for the emperor to offer his prayers to Heaven.

Celestial Annex, or The Imperial Vault of Heaven (皇穹宇), this circular dome building was built on a single level of marble stone base. Like the Imperial Hall of Heaven, this dome structure has no crossbeams to support its dome.

Admission fee: RMB34/Adult(incl. Tiantan temple, Circular Mound and other attractions), children half price; 60+ free.

How to get there by Beijing Metro?
Take Line 5, get off at Tiantandonen Station, then use Exit A2.