Art restoration is one of those things that's surprisingly entertaining. I'm not much of an art buff, and whenever someone starts talking about the "classics," I think they're referring to the original Robocop and Predator movies.
To me, Leonardo, Michaelangelo, Donatello, and Raphael are famous artists second and crime-fighting anthropomorphic Turtles first.
But I still love me a good art restoration story. Just look at this art dealer delicately removing varnish from an old painting.