Step into a masterpiece of Catalan Modernisme at the top of the elegant Passeig de Gràcia. This isn't just a hotel; it's a historic architectural gem designed by the great Lluís Domènech i Montaner, once the most expensive private home in the city. You can feel the history in the grand Café Vienés, which transforms into a legendary jazz club that's even hosted Woody Allen. For an unforgettable view, head to the rooftop terrace for a dip in the pool, where you can gaze out over the city all the way to the sea.