What’s a trip to Barcelona without a dozen or so pictures of the unusual architectural works by Antoni Gaudì? Here are some of my favorites:
The Casa Milà
The stained glass was especially beautiful at night…
I love how the Sagrada Familia Cathedral looks like a sand castle. It is slowly being covered in mosaics, so one day will be quite a festival of color.
Wikipedia has this cool list of Gaudi buildings if you want to see more.