You are facing towards the window, turn right and move forward. Turn slight right and move towards the open entrance. Turn right and keep moving forward. Turn slight right and move to the middle open door. Now turn right and through the arch. Keep moving forward. Turn right and move towards the staircase. Now you can see staircase to your left. Move towards the open arch which is to your right. Enter into it. Turn slight right and move towards the second window which is from the corner. Now you are standing near the window. The position you are standing is your final destination.