Out of all the many different materials I have used in arts & craft work over the years, I think copper is in the top 2 or 3. I particularly like it for Yard Art. It's quite malleable, and it takes on a wonderful verdigris patina over time outdoors. Copper is one of the few metals to occur naturally as an un-compounded metal, and it has a history of use at least 10,000 years old.
Years ago I rented an office in the Historic District of Annapolis, and the window by my desk looked out over a wonderful old copper roof. Some of the older boats in the harbor even had copper plate on the lower parts of their hulls to repel barnacles. Few can afford copper roofing today, and even copper gutters and downspouts now cost a small fortune. Plus I suppose boat hulls today are probably painted with something to kill barnacles.
Meanwhile in doing my genealogy research, I came across this wonderful copper statue dedicated to the copper miners in Arizona.

I love this plaque on the statue base:

