I am on generation 5 with one of my families and I have never seen a picture piece (seen under the collections tab). I have been trying to play the game without cheating, so if anyone could give a hint that would be great. (I did search for this answer, but there was nothing under "picture pieces".) Thanks for help.

Daria

Have you opened the shed yet?

No, it's locked - I haven't figured out how to unlock it, yet either. Thanks for the hint!