[{SlideShowNav}] !!!Mysterious marks on rock [{Image src='A1 (84).jpg' caption='Mysterious marks on rocks, 1997, © [Markus Duschek|Infos_zum_AF/Editorial_Board/Duschek,_Markus_(Diplomierter_radiologisch-technischer_Assistent_)]' alt='Mysterious marks on rocks' class='image_left' width='800' height='511'}] [{Metadata Suchbegriff=' ' Kontrolle='Nein'}]