Here are some highlights:
Park Guell: A park designed by Antonio Gaudí, who is a very famous artist/architect from Barcelona. This park was absolutely gorgeous, as you can see. It also reminded me a lot of Dr. Suess :)
La Sagrada Familia: This is a cathedral that was started in 1882 by architect Francisco de Paula del Villar and was taken over a year later by Gaudí. Believe it or not, this cathedral is still not finished! Predictions say it will be done in 2038, but that all depends on funding. It is hard to tell from the picture, but the outside of the cathedral has all sorts of religious scenes sculpted into it.
Holly leaves outside Sagrada Familia :)
Candy at the market
Here you can see a part that is still under construction