We left Barcelona mid-morning on a Sunday and the goal was to get to Bilbao by 4:00 so we had four hours in the Guggenheim. The museum closes at 8:00 p.m. and they are closed on Mondays, so there was to be no dilly-dallying. We made it! The Frank Gehry designed building was incredible, and the Richard Serra and Jean-Michel Basquiat exhibitions were very, very good. Bilbao itself was a very clean, friendly, beautiful, walkable city...much bigger than I thought it would be.