In northern Thailand around Chiang Rai you can still find the long-neck Karen tribe living in certain areas. They are well known because of the bizarre habit of the women wearing traditional brass rings around their neck. Starting at a very young age the young girls start with a few rings and as they grow they gradually add on rings till the neck appears very elongated. In fact the appearance of a longer neck is a visual illusion. The weight of the rings pushes down the collar bone, as well as the upper ribs, to such an angle that the collar bone actually appears to be a part of the neck.