Here’s a good idea to spend time in winter and enjoy its beauty!
Moscow Festival of Snow and Ice 2015 in Luzhniki
Started 05 January 2015 till 01 March 2015
Working hours: every day 11:00-23:00
Cost: 300 rubles
Current status: closed till 20 January because of renewal of the exposition

Source: http://www.ledgorod.ru