With lots of wide streets, bike lanes and pavements, flat paths, hills and skating parks Barcelona is perfect city for skating vacation. It is not a coincidence that lots of Powerslide promo videos are shot there.
This is really nice overview what Barcelona has to offer.
More videos are at the bottom.
http://www.strava.com/routes/4309550
Some videos from youtube:
Some freeskate.
By the sea.
How they do 100 km in Barcelona.