One of the highest achievements of Italian Gothic art and architecture is Orvieto Cathedral. Few buildings in the world are that ornate, and at the same time - few have such a well balanced and harmonious architecture. A very good text about it can be read here.
But you're getting ready to see it up close and personal, you've never really been on the receiving end of it and you'really not gonna like it. You've had it coming for a while. I advise you to stay in your lane.