construction design drawing drawings engineer office plan plans project projects sheets technica technical workplace brige century iron old Poland river road steel Tczew truss vistula wisla xix built football lights Mud pitch reflector seating seatings site spectacle sport stadium train bar childrens game cross dash drawing riddle game geometic graphic graphic line graphs theory line line drawing lines paint game painted house painting riddle strike stroke this is the house of santa claus under construction vector bridge concrete form highway i-35w interstate minneapolis minnesota mississippi mn pier span building renovation scaffolding work. grading paving tractor chimney construction site crane groningen sky