We are in large concrete room with large, wheeled containers that are fitted against shelf of concrete, which we are standing on.  The containers are probably for putting things in, and the wheels imply they can or are meant to be moved.  Several doors larger than our persons on the wall behind us and across from us, and a large opening on the eastern wall probably meant to accomodate motor vehicles.  The walls are bare concrete and there are square pillars, and the large concrete floorspace under the shelf we are on is partially marked with yellow lines.  There are steps but not a ramp.  There is what appears to be trash in the containers under the raised concrete area, though it would be easy for a body to fall into the containers and be taken wherever the trash is taken, if indeed anyone ever comes down here.  There is graffiti high on the walls, higher than a normal person could reach.  You could probably flood the space with water and swim in it if the floor-level door to the outside of the building was blocked, although as already noted there is trash everywhere.