In China's northeast, the freezing night air reverberates to a disco beat. The host, "Brother Left and Right," is energizing a thousands-strong crowd, most of them from outside the region. The coldest place in China is creating one of the country's hottest tourist destinations. From the spectacular displays of ice sculptures attracting visitors to its old industrial cities, to the ski clubs drawing winter sports enthusiasts to its pistes, the northeast is embracing the economic potential of an abundant but long-neglected resource – its ice and snow.