The visitor's center has a great plan of the valley showing all of the tombs. When you bend down to look under the table you see the shape, length and size of the tomb.  One of the best tombs is Ramses VI.  It is not always open, but if it is go see it. King Tut's tomb is closed for restoration for an unknown time. Few people ever visit the Western Valley or the Valley of the Apes. Go there because it looks the way the Valley Of the Kings did long ago. One tomb is open there, the tomb of Ay who took over after Tut died. Well worth the side trip and not as touristy.