This will give you an idea of the view from TOTR (this is from 2012), there's one level with the glass guards - there's about a 3-inch gap between them, so you could stick your digital camera between those like you see the lady in the left. But if you go up a few stairs, it's pretty clear of obstruction.
Also there's the ice rink downstairs so kinda one stop for taking pictures. Lego World also had a Lego replica in the store. To complete the tourist thing on one of the corners of the Rock is Magnolia Bakery - not sure how the cupcakes are now but they were tasty in 2012.