Yakutsk is the capital city of the Sakha Republic, also known as Yakutia, in Russia. It is located in eastern Siberia along the Lena River and is known for its extreme cold temperatures, often reaching below -40°C in winter. Yakutsk is one of the coldest cities in the world, with a population of around 300,000 people. The city serves as a cultural and economic center for the region, featuring institutions like the North-Eastern Federal University and the Yakutsk State University. Yakutsk is also famous for its rich history, indigenous Yakut culture, and unique attractions such as the Mammoth Museum.