The annual Ice Festival is Harbin's main winter draw. The Harbin International Ice Festival only started about 10 years ago, and it is already one of world's four biggest such ice and snow festivals, along with the famous ones in Sapporo, Norway and Quebec. At first, mainly Chinese participated, but in the last few years, it has become an international festival and competition. As the festival grows in international participation and as China's economy grows, the size of the snow sculpture and ice architecture exhibits keeps growing. Now, the work going into making these exhibits is astounding, and their size and beauty is amazing. Last year, tens of thousands of people labored on the displays.