First stop - Casa Mila (aka La Pedrera / "The Quarry" for looking hewn out of a rock face)
The practicality of the ornamental structures is impressive - makes you want to be an architect.
Next - The Block of Discord (a few blocks south)
A line-up of contrasting facades
Had a nice sit-down lunch with an American couple from LA. The woman wants to introduce me to her niece in San Francisco.
Finally, the Sagrada Familia:
Can't add too much to the pictures - the building (still 20 years from completion) is immense, towering over the neighborhood, and crafted impeccably for 100+ years of construction.
Found a nice Enlish-language bookstore in the neighborhood - traded "The Name of the Rose" (finished just in time for ancient Roman country) for "Cryptonomicon" (not terribly relevant, but I've been meaning to read it)