Circular Mound Altar
Place
The Circular Mound Altar (圜丘坛 huán qiū tán) is an outdoor empty circular platform on three levels of marble stones, located in Beijing, China. It is part of the Temple of Heaven.It was constructed in 1530, during the 9th year of the Jiajing Emperor's reign in the Ming dynasty, and enlarged in 1749 (the 14th year of the Qianlong Emperor's reign in the Qing dynasty).