It took me a few hours to figure out how to climb it. I not only used several crates, but I also used that big table across the room on the barricade. All for nothing but a cool angle of the room to take a picture. EDIT: Later, I learned a cheat code that allowed me to pass through the door, and respawn in the “room.” Not only is there nothing in there, there is not even a floor in there! You just fall down to the floor below.