Welcome to the Eixample district, where modern Barcelona was born. The grid pattern was designed by Ildefons Cerdà making it easy for you to find your bearings. Investigate three incredible Modernist buildings, the Gaudi-designed Casa Batlló and Casa Milà, popularly known as La Pedrera, with its incredible undulating stone façade, and Casa Amatller by Josep Puig i Cadafalch. Pop into La Boqueria on Las Ramblas, a huge market offering a wide variety of traditional products - if you want to see it in all its lively glory arrive mid-morning. By the way, if markets are your thing, a little further away you’ll find Santa Caterina, where the brightly-colored, undulating roof is made with small ceramic pieces representing the fruits and vegetables sold beneath.