To reach our next stop from Room N°641, go through Egyptian Rooms N°642-644. Next, you will come to a room with columns, Room N°645. Continue past Rooms N°646-650. When you leave the last room, follow the corridor to the door in front of you to enter Room N°661. You are now in the Denon Wing. From Room N°661, proceed to the rotunda just ahead (Room N°704) and turn immediately to the left. You are now in the iconic Galerie d'Apollon (Room N°705), housing the Crown Jewels in showcases in the gallery's centre. The Regent diamond occupies its own showcase.