Gorgeous and large sprawling park built onto steep hills a bit away from the old city center. The entire park has lots of accents by Gaudi, but if you want to get into the museum and the highly ornate part of the park, it's only to paying customers, and even with multiple gates, there's always a line. Probably better go earlier in the day. Even without going inside the museum, the park is lovely and has pretty good hiking opportunities. Bring a snack, not a whole lot to eat in the immediate area.