The lunar new year is celebrated throughout the world, but especially in Asia when the lunisolar calendar ticks off a new cycle. This year is the Year of the Dragon on the Chinese zodiac, and is viewed as very auspicious. In China, the holiday is known as 春节, the Spring Festival, and kicks off 15 days of celebration. It also triggers the largest human migration in the world, as hundreds of millions of Chinese trek to see families. Gathered here are images of the preparation for the holiday, the travel scene in mainland China, and celebrations in many parts of the world. 新年快乐!