Photo taken on Jan. 11, 2021 shows icicles at the entrance to a natural cave in Huzhong District at the northern foot of the Dahinggan Mountains in northeast China's Heilongjiang Province. Huzhong District is known as "China's coldest town," and the lowest temperature in the district has dropped below minus 40 degrees Celsius in recent days. (Xinhua/Xu Kaixin)
Photo taken on Jan. 11, 2021 shows icicles at the entrance to a natural cave in Huzhong District at the northern foot of the Dahinggan Mountains in northeast China's Heilongjiang Province. Huzhong District is known as "China's coldest town," and the lowest temperature in the district has dropped below minus 40 degrees Celsius in recent days. (Xinhua/Xu Kaixin)
Photo taken on Jan. 11, 2021 shows icicles at the entrance to a natural cave in Huzhong District at the northern foot of the Dahinggan Mountains in northeast China's Heilongjiang Province. Huzhong District is known as "China's coldest town," and the lowest temperature in the district has dropped below minus 40 degrees Celsius in recent days. (Xinhua/Xu Kaixin)
Photo taken on Jan. 11, 2021 shows icicles at the entrance to a natural cave in Huzhong District at the northern foot of the Dahinggan Mountains in northeast China's Heilongjiang Province. Huzhong District is known as "China's coldest town," and the lowest temperature in the district has dropped below minus 40 degrees Celsius in recent days. (Xinhua/Xu Kaixin)
Photo taken on Jan. 11, 2021 shows icicles at the entrance to a natural cave in Huzhong District at the northern foot of the Dahinggan Mountains in northeast China's Heilongjiang Province. Huzhong District is known as "China's coldest town," and the lowest temperature in the district has dropped below minus 40 degrees Celsius in recent days. (Xinhua/Xu Kaixin)
Photo taken on Jan. 11, 2021 shows icicles at the entrance to a natural cave in Huzhong District at the northern foot of the Dahinggan Mountains in northeast China's Heilongjiang Province. Huzhong District is known as "China's coldest town," and the lowest temperature in the district has dropped below minus 40 degrees Celsius in recent days. (Xinhua/Xu Kaixin)
Photo taken on Jan. 11, 2021 shows icicles at the entrance to a natural cave in Huzhong District at the northern foot of the Dahinggan Mountains in northeast China's Heilongjiang Province. Huzhong District is known as "China's coldest town," and the lowest temperature in the district has dropped below minus 40 degrees Celsius in recent days. (Xinhua/Xu Kaixin)