&hint2=I was deliberately left without protection to allow the natural process of erosion&
&hint3=My shape is related to the female body&
&hint4=The artist that created me found the earth to represent a spiritual mother&
&choices=Roden Crater Project;Untitled, from the Arbol de la Vida;Itiba Cahubab (Old Mother Blood);Chamber tomb, interior;Stone Enclosure, Rock Rings;Tumulus of Emperor Nintoku&