Here is the entrance to the church with a large colorful arched mosaic over the door.
Here is part of the upstairs floor mosaic. It's funny, but we actually saw the entrance to the church and then walked up the long spiral steps outside to an overlook of the park. You can see all of Barcelona from up there and even the edge of the ocean. Then, without much thought, we decided to take a peek inside the church and so this was the first hint of greatness that we got. I had no idea that the amazing mosaics were actually downstairs!