Enlarge this imageRescuers in the vicinity of the doorway towards the Riesending cave at Untersberg mountain near Marktschellenberg, Germany, on Thursday. A severely wounded cave researcher was hauled out following expending two weeks underground.Nicolas Arner/DPA/Landovhide captiontoggle captionNicolas Arner/DPA/LandovRescuers around the entrance into the Riesending cave at Untersberg mountain around Marktschellenberg, Germany, on Thursday. A severely…