The unfinished Barcelona cathedral, La Sagrada Familia is the most amazing thing you can imagine, inside and out. It looks like it was made from giant surrealist drips of wet sand. You might not be able to see it in person, but you can experience it and other incredible creations from the legendary architect Antoni Gaudí in 3D in Gaudí Pop-Ups.
You thought pop-up books were just for kids? You thought wrong. This medium is the only logical way to take in pictures of crazy Gaudí creations like Park Güell and Casa Batlló, and the buildings and sites that make Barcelona the amazing place it is. [Amazon]