Nested Christmas Dolls

Every year, Sapporo has a small Christmas festival (modeled after the one in Munich, Germany) in Odori Park in central Sapporo. We had time yesterday when we visited Sapporo and enjoyed the sights and sounds (and odors, which were very nice and Christmas-y). This shop was selling nested dolls. I didn't know they were Christmas-related but there are many things I don't know.

Done