Nikolay Vinokurov, 7, and his sister Vera Vinokurova, 9, have lunch at their grandmother's house in the village of Tomtor, in the Republic of Sakha, northeast Russia, January 21, 2013. The coldest temperatures in the northern hemisphere have been recorded in Sakha, the location of the Oymyakon valley, where according to the United Kingdom Met Office a temperature of -67.8 degrees Celsius (-90 degrees Fahrenheit) was registered in 1933 - the coldest on record in the northern hemisphere since the beginning of the 20th century. Yet despite the harsh climate, people live in the valley, and the area is equipped with schools, a post office, a bank, and even an airport runway (albeit open only in the summer). Picture taken January 21, 2013. REUTERS/Maxim Shemetov