On June 15th, local time, Leningrad Oblast, Russia, the local weather is fine, residents play in the Bornitsky quarry, the rolling terrain makes people feel like they are on Mars. It is reported that the formation of this terrain is due to the construction of houses to mine limestone, and these stones are also used to build the Kazan Cathedral in St. Petersburg.

Release time: 2020-06-16 11:27:25 [Editor: Li Peiyun]