Underground palaces were usually built of brick and stone in square, hexagonal, octagonal or round shapes. Occasionally such a structure was built inside the pagoda or semiunderground. In olden ...

Construction of the pagoda is estimated to have been between 1100 and 1120 towards the end of the Liao Dynasty. The octagonal pagoda, 57.8 meters tall, was erected on a square platform.

Dongji Pagoda, a nine-story octagonal tower, is a landmark in Fuyuan, Jiamusi, Heilongjiang province. [Photo by Hu Panxue/For China Daily] Situated on the border of Northeast China's Heilongjiang ...