This is the inside view of one of the most famous domes in the world. It was designed by Brunelleschi and the exterior dominates the skyline of Florence. The exterior is what every visitor to Florence sees but many don't take the time to step inside the famous Duomo. The interior is difficult to photograph because it is fairly dark. But it is certainly worth the visit.
I call this "The Impossible Dome" because the church was built on such a scale that no one had the engineering skills and technique to cap the transept. Finally, Brunelleschi invented the process and the dome was built.