Just an hour and a half outside of Barcelona, the views from Montserrat are simply breathtaking. The cathedral in Montserrat is world-renowned and has been a destination for religious pilgrimage since the 800s. If you get there by 1, you can usually catch a performance by the boys chorus, which is said to be the best in all of Europe. A sculpture of the Virgin Mary and baby Jesus, La Moreneta, is housed in the cathedral and is a must-see. It has been said to have miracle-working powers. Even if you don't believe in its powers, just the sight of it is so unusual and is definitely worth seeing.