It would have been nice to see the initial unsuccessful results using Photoshop, since it looks like a median filter can potentially work quite well at removing

It would have been nice to see the initial unsuccessful results using Photoshop, since it looks like a median filter can potentially work quite well at removing tourists: http://nifty.stanford.edu/2014/nicholson-the-pesky-tourist/ http://nifty.stanford.edu/2014/nicholson-the-pesky-tourist/ The alternative approach is just to use a really long exposure time, like "Silent World": http://www.popsci.com/technology/article/2012-04/artists-use-filter-normally-used-nasa-remove-people-crowded-urban-places http://www.popsci.com/technology/article/2012-04/artists-use...