No matter how dearly we love some of the things in our lives, we have to face the fact that they'll one day get worn down to nothing.
It may not happen for a long time. In fact, some of these objects may even wind up outliving us. But when they say that nothing lasts forever, they really don't leave any room for exceptions.
But since this process of wearing away happens so gradually, it's usually much more apparent and fascinating to those of us who don't see it every day.
So while the deterioration of the things we're about to see may have taken their owners a while to notice, they should jump out at us immediately.