Construction Karawanks Motorway Tunnel East Tube, Slovenia photo DARS via Wikipedia https://en.wikipedia.org/wiki/File:Predor_Karavanke_Construction_Site_19.jpg

Construction Karawanks Motorway Tunnel East Tube, Slovenia (photo DARS wikipedia https://en.wikipedia.org/wiki/File:Predor_Karavanke_Construction_Site_16.jpg)

Construction South Portal Second Tube Predor Karavanke , Slovenia (by DARS from Wikipedia https://en.wikipedia.org/wiki/File:Predor_Karavanke_Construction_Site_15.jpg)