Barcelona’s skyline is on full display at the Mandarin Oriental Barcelona's posh rooftop terrace. Soak up views of Gaudí’s La Sagrada Familia and Casa Batlló while sipping a pisco sour and feasting on fresh ceviche and sushi from the Peruvian-inspired menu created especially for Terrat by acclaimed chef Gastón Acurio. Sample a variety of tiradito (spicy raw fish) and maki—the colorful Chalaco Maki, with fried prawns, shrimp ceviche, avocado, and sweet potato in a peppery rocoto sauce is a standout. Terrat is open seasonally from April to October; non–hotel guests can enter after 6 p.m. Tip: Book a table reservation for sunset hour; the sun sinking behind the surrounding mountains is a spectacular sight. If the weather isn’t cooperating, the hotel’s ritzy Banker’s Bar is a great spot to splurge on a cocktail.