Attendees pose for a selfie with boot-shaped mugs at the Christkindlmarket in Chicago, the United States, on Nov. 22, 2019. (Photo by Joel Lerner/Xinhua)

A woman looks at some illuminated stars at the Christkindlmarket in Chicago, the United States, on Nov. 22, 2019. (Photo by Joel Lerner/Xinhua)

Boot-shaped mugs are seen at the Christkindlmarket in Chicago, the United States, on Nov. 22, 2019. (Photo by Joel Lerner/Xinhua)

Attendees pose for photos at the Christkindlmarket in Chicago, the United States, on Nov. 22, 2019. (Photo by Joel Lerner/Xinhua)

People walk around at the Christkindlmarket in Chicago, the United States, on Nov. 22, 2019. (Photo by Joel Lerner/Xinhua)

A woman drinks hot cocoa with a boot-shaped mug during the Christkindlmarket in Chicago, the United States, on Nov. 22, 2019. (Photo by Joel Lerner/Xinhua)