a long, narrow hallway lined with tall black cylinders. the floor is polished concrete and the walls are a muted gray. the

long narrow hallway line tall black cylinder floor polished concrete sophisticated atmosphere indoor entrance rectilinear dimension cosy reflector update architecture observation structure corridor ambient illumination perimeter slender interior tasklight slim style fixture uplight linearly tubular vertical visual downlight linear layout design minimalist ceiling intensify horizontal elegant modern geometry contemporary stylish lined cylinders walls muted gray lighting soft warm generative