Take in the grandeur of Christ Church Cathedral. Stay for a mass if you can or simply wander around and enjoy the peace and quiet.
This principal church has free entry, so you can have a fun day out without worrying about your travel budget. However, Christ Church Cathedral isn't the only worthwhile attraction in or around the urban neighborhood of Central Business District. With USS Alabama Battleship Memorial Park, Gulf Coast Exploreum and History Museum of Mobile close by, you may want to stay a while longer.