We're whisking you away to Barcelona today for some sun, sangria, and sensational architecture. Sure, Gaudí's work is a visual feast, but we're talking the Hotel Arts Barcelona. Overlooking the city's beaches and promenades, the hotel itself is housed in a striking contemporary building with terraced gardens and a stunning outdoor pool. Inside you'll find more eye candy: an impressive art collection and a swoonworthy duplex spa by Six Senses. (If Gwyneth gabs about this place on GOOP, it's gotta be good!)