Oymyakon, Indigirka River, Sakha Republic, Russia

During World War II an airfield was built there for the Alaska-Siberian (ALSIB) air route used to ferry American Lend-Lease aircraft to the Eastern Front.
Climate
With an extreme subarctic climate (Köppen climate classification Dwd), Oymyakon is known as one of the candidates for the Northern Pole of Cold, the other being the town of Verkhoyansk. The ground there is permanently frozen (continuous permafrost).