Many of Barcelona's rooftops offer a slightly restricted view of the city's major sights. The terrace at the top of the Grand Hotel Central is a sure way to avoid disappointment: with its impressive views of almost the whole city, it's no surprise that this terrace doesn't stay empty for long. If you’re not staying at the Grand Hotel Central, you can still hang out at its lovely rooftop Sky Bar from 1.30pm til 9 pm. (Outside those times it’s exclusive to guests.) An infinity pool gives way seamlessly to epic views of Barcelona’s Gothic Old Town, with a smart lounge area just made for sundowners.