We visited Sagrada Familia in March but were unable to get guided tickets at that time. So when booking to come back in December we advanced booked a guided tour. Daniella, who was our guide, was amazing. She kept the pace of the tour and demonstrated expert knowledge of the history of the build and of Gaudis' work. The tour lasted about an hour, was well organised, and Daniella was keen to keep check on everyone. She stopped throughout the church to show points of interest and to reference the best viewing points. It was superb. It's my fourth visit to Sagrada Familia in my lifetime, and I will go back. You never tire of looking at this majestic building, and the details within its structure. It is outstanding. The towers are physically hard if you do have any issues with mobilit or back conditions. My top tip is to book well in advance. I booked from the UK and downloaded the tickets . Daniell, you were amazing, thank you!