This “secret” speakeasy behind the fridge door of a pastrami bar is also Barcelona’s worst-kept secret—so expect more tourists than a Saturday afternoon in Las Ramblas. Paradiso is built to impress, with an undulating Gaudí-esque ceiling, a long marble bar, bartenders who feel like performance artists, plus smoke, lasers, bubbles, and more dry ice than an ’80s music video. But there’s substance to all the spectacular optics: drinks are incredible explosions of flavors and textures. Try the Great Gatsby, a truffled spin on an Old Fashioned that emerges from under a bell jar in a dramatic plume of smoke, or the Atlantide, a gin, marine cordial, and tomato water refresher topped with a white chocolate gold coin. A convenient QR-code-based waiting system has replaced the hours-long line that usually fills the street outside, so you can grab dinner or drinks nearby while you wait.