La Sagrada Familia is probably the best/top attraction in the city of Barcelona. Surely we can say that if you had visited Barcelona and if you had not seen this attraction, your visit to the city was pointless. This Roman Catholic Church is designed by Antoni Gaudi (HOW SURPRISING!). Not lots of tourists know but the building is not completely finished. It is expected to be fully completed in the middle of the 2020s. Currently millions of tourists visit this place every year. The exterior and interior of the place are amazing and you can always see something really interesting. I had gone to La Sagrada few times and each time I was shocked how gorgeous is this attraction! Must see!