From the makers of Inpaint, this tool allows you to remove moving objects (like tourists) from photos. Really fun to play with!
http://www.giveawayoftheday.com/multiview-inpaint-1-2/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+giveawayoftheday%2Ffeed+%28Giveaway+of+the+Day%29

I made this from a movie grab. Notice the lack of visible artifacts or repetition: