Right now you're facing towards the railing. Now turn left and move towards the entrance which is to your left. Now turn left, there is an open door to your left, move towards the door and turn behind. You can see railing in front of you, move towards the railing and cross it. There is a staircase to your right. Now slightly turn left and move towards the round table which is in front of you. There are two arches in front of you, move towards the first arch and slightly turn left. Now move a bit forward, there is an arch to your right, move forward towards the arch. You can see a glass window in front of you, move towards the window and stand in front of it and it is your end point.