2. Cathedral Basilica, St. Louis

If you want to see one of the beautiful US churches that was visited by a pope (John Paul II) in 1999, then make time for the Cathedral Basilica of Saint Louis. In spite of a destructive tornado, the community went ahead and raised $1 million so the cornerstone was laid in 1908. This building shows off Romanesque and Byzantine architecture and is dedicated to Christ and King Louis IX. You’ll want to take pics of the artistic Byzantine-style mosaics of the life of St Louis and you can do so during a free guided tour.