The Duomo of Modena is huge! It was impossible to get the entire church in one shot.
There was a mass taking place the first few times I attempted to go inside the Duomo. Each mass was packed. Finally the last mass of the morning ended. There was so much to see. In just 15 minutes, the workers started to close the church for the day. I wish I had more time to spend inside the church. Modena is definitely on my list of places to visit again.