Introduction to Xiacheng District: Xiacheng District is an ordinary residential area and storage warehouse area. Compared with Shangcheng District, the stone building materials here are much rougher, and the buildings are not as grand and tall as those in Shangcheng District. Therefore, Xiacheng District also has a "civilian area" " known as. There is a mortar house at the end of the civilian area. There are two mortar-like circular pits on the ground of the stone house. It is believed that after storing water, these two circular pits were "astronomical instruments" used by the Incas to observe the sun, moon and stars. "The Mortar House is an astronomical observatory located in Lower City.
Attraction