This video about a beautiful, 240-year-old, mechanical boy has nothing to do with family history (unless you're a descendant of Swiss watchmaker Pierre Jaquet-Droz) but I thought it was fascinating. Perhaps you will enjoy it, too.
I have never seen this boy in person but many, many years ago I visited a museum in Philadelphia and saw a machine similar to this (sans boy) which wrote and made drawings. I was amazed that someone could create such a machine. Enjoy.