Don't know where to post it

Hello,
I think I have seen a human skull on to the Bridge, partly hidden by a frame near the bath, and I have marked it with a circle on a photo and I would like to ask the community if I am right or wrong, but I didn't find any topic on the forum where I can post it (I was looking for something like "wreck") so before posting it on the wrong place, I rather prefer asking to you where I can do that. Thanks! Kareen