Seemingly never ending main tunnel at Schoenenbourg Fortress, Bas-Rhin department, France, Europe

photography colour colour image color color image horizontal horizontal image indoors inside day nobody no one no one travel travel destination travel destinations tourist destination bunker concrete world war ii tunnel schoenenbourg fortress bas rhin department france french europe european building exterior building buildings building interior building interiors interior interiors diminishing perspective vanishing point perspective the way forward yellow colour underground illuminated lit lit up x 2017m2 x printready