astounding complex. I was there and climbed to the top of the Pyramid of the Sun. Made me very giddy, as Mexico City is about 7,200 feet and the Pyramid of the Sun is stairs have 248 steps, or at least 260, anyhow so you are up there. Man was much smaller back then so the steps are truly very tiny and some of them I had to walk like a duck. But the view was fantastic. I have acrophobia so I was very pleased to descend.