Just make sure there is someone in front of you. If there is somebody you can focus on it is easier. How far are we going down . We will stop here. One of the things i wanted to point out to you here coming down the steps you will see that the 36 rib trusses that form the superstructure of the dome converge here to the 12 that go up to support the statue of freedom. As you can imagine, trying to merge 36 items into such a small space at the top was too great so every third truss is the one that continues forward and the two that flank it merge into its side for buttressing support. What you also see is the enormous super structure has very slender bands that reach down to suspend the shell below. And it has a very thin element that reaches out to the shape of the exterior dome. The brilliant thing about this design is that the dome is exposed to very harsh conditions on the outside, very cold in the winter, extremely hot in the summer under direct sun. Some plates may approach 130 degr