The exterior tour of the Sagrada Familia is a tour in which you will get to know this temple, considered Gaudí's masterpiece. The symbology, materials and techniques used to build this religious building are not easy to interpret if an expert guide does not explain them to you. This walking tour is ideal for understanding the complexity that the great work of the modernist architect presents to the naked eye. And, if you still want more, you can always buy your ticket and enter the Sagrada Familia to see it from the inside.