if you visit these killing centers today, you ll see thousands upon thousands of shoes like this. the shoes of the victims. the german took their shoes because they were going to reuse them and recycle them if you will. but of course the victims would be killed. this is what s left of those lives. reporter: these shoes are here and the only surviving elements where all those people who were exterminated. this is the trace of the people before they were gassed. reporter: i think of those shoes, you know, my four grandparents. we didn t have anything. we had nothing. it was just horrendous, horrendous situation. it was so important, so timely to remind people who don t know anything about it. and i think it s so important and i m sure you ll agree, jim. people who come to visit washington go to the washington mall. take a tour of this museum. even those of us who have grown up, children of holocaust survivors, we learn a lot every time we go there, and it is so importan