In terms of age and abundance, cave art in Australia is comparable to that of Lascaux and Altamira in Europe, and Aboriginal art is believed to be the oldest continuing tradition of art in the world. There are three major regional styles: the geometric style found in Central Australia, Tasmania, the Kimberley and Victoria known for its concentric circles, arcs and dots; the simple figurative style found in Queensland; the complex figurative style found in Arnhem Land which includes X-Ray art. These designs generally carry significance linked to the spirituality of the Dreamtime.