Construction Karawanks Motorway Tunnel East Tube, Slovenia
photo by DARS via Wikipedia https://en.wikipedia.org/wiki/File:Predor_Karavanke_Construction_Site_24.jpg
Construction Karawanks Motorway Tunnel East Tube, Slovenia
photo by DARS via Wikipedia https://en.wikipedia.org/wiki/File:Predor_Karavanke_Construction_Site_23.jpg
Construction Karawanks Motorway Tunnel East Tube, Slovenia
photo of DARS via wikipedia https://en.wikipedia.org/wiki/File:Predor_Karavanke_Construction_Site_22.jpg