Well the truth is I don't know how to best describe this wonder. I wanted to see it for many years and finally did this past Christmas. I can only say that is an impressive architectural marvel. As you head towards the city, you see the two massive towers approaching in the distance. It's quite exciting, really, to think that I would finally see that wonder and when at last I was standing the square. It was awesome. Then you go and explore the upper chambers and begin to see the beautiful stained glass. For me, it was an unforgettable experience.