"Set atop Montjüic hill, Barcelona’s MNAC is in the city’s national palace; access is via grand stairway (or outdoor escalators), with waterfalls that flow down as you ascend. Indoors is epic too. There are four zones—Medieval Romanesque, Medieval Gothic and Renaissance, and two Modern Art rooms—and each genre is like a maze, every turn transporting you to a new mood, artist or medium (from Gaudí to Picasso to propaganda posters from the Spanish Civil War). Don’t miss the Romanesque frescoes that have been "extracted" from World Heritage churches and reinstalled inside huge domes." - Gemma Askham