front door

Michiel and Piffin found a fantastic antique front door in a garbage container. Now we have a problem. What are we going to do with the antique door? It is really lovely, worn, torn, weathered, and very ornate. Paint is almost completely gone. We don't need it as an actual front door, because Michiel already painstakingly restored another antique one, and that one works perfectly fine. As a back door maybe? No, that would be too dark, this one only has a tiny window. And too big a project for now anyhow. I thought we could make a mantlepiece on the guest room chimney. But Michiel's face turned a strange colour when I proposed that. He thinks Piffin can turn the door into a work of art, by building a room behind it. What would you do?