For those traveling to Barcelona, I've plotted a map with Gaudi's buildings. You can find it at: http://www.quia-absurdum.com/barcelona/gaudi.html (Not sure why, but Firefox centers the map on Palo Alto, but you can navigate to BCN. Works fine in IE and Opera. Go figure.) or: http://maps.google.es/maps/ms?ie=UTF8&hl=es&msa=0&msid=114692760735348159746.0004443e5b22c539965f7&ll=41.386855,2.172031&spn=0.087192,0.160675&z=13&om=0
Hope it helps.