La Sagrada is the coolest church, ummmm building, that I have ever been in. Another, and probably the most famous Gaudi design. There so much detail, so much to see. You could spend hours and never see it all, even with a tour! It is forever under construction and scheduled to be completed in 2026 (the 100 year anniversary of Gaudi's death) but we will see what happens with it. I am definitely going back.