You are facing the contoured grey wall, turn right to see an open glass door and walk outside the room. Turn slightly left and walk down the stairs. Turn left and walk straight towards the two open brown doors on the left. Turn left at the brown doors and walk straight towards the center marble structure. Turn left from there and walk towards the pillar in front of you. Turn right from there and you will have three sink type structures in front of you, walk towards the one in the middle and stop.