Most tourists walk past the main entrance on Diagonal and think "meh." The secret is to walk around to the back side on Carrer de Còrsega. This is where the architect (a Gaudí fanboy) went crazy with colorful mosaics and curved wood that looks like it's melting. *Insider Tip:* There is a tiny bench right in front; sit there for a selfie with the green ceramics as your background.

This is the OG location. Before they expanded everywhere, this tiny hole-in-the-wall on Carrer de Siracusa was the spot. It’s smaller than a walk-in closet, which makes it an infinite flex to say you go to the "original" one. It is strictly takeaway, high-speed, and high-quality. **Insider Tip:** Don't ask for sugar or syrups. The baristas are purists. Order a "Flat White" to fit in with the locals leaning against the wall outside.