If your trip to Sant Cugat del Valles is all locked in but your itinerary is looking a bit empty, let us give you a helping hand.Monastery of Pedralbes and Park Guell are cool attractions that all serious sightseers should make time to visit. Map out a route and spend an hour or so exploring each one.Stop by Parc de Collserola. It's one sight you'll usually find on travelers' to-do lists. If you still have space on that travel schedule, El Teatre - Auditori Sant Cugat and Carrer de Montcada will keep you on the go as well.