The Temple had a celebration just like every other year at the Day of Open Doors. Everyone was invited to visit the temple freely that day, without an entrance fee. The great annual celebration served to those involved in the current issue provoked by the controversial tunnel project. The tunnel is for a high-speed train named the AVE that will go underground and may harm the Temple by the shaking and vibrations. The section of the AVE that threatens the landslide of the Temple is by Majorca street. Therefore, by inviting the people affected by this decision, they were allowed to publicly express their rejection to the tunnel. In addition to other activities, the great temple words of Gaudí and Joan Maragall that explain the history of the Sagrada Family from the beginning were heard through out the Temple on intercoms.

Four properties built by the architect Antoni Gaudí (1852–1926) in or near Barcelona are added to his Parque Güell, Palacio Güell and Casa Mila in Barcelona, inscribed on the World Heritage List in 1984. They testify to Gaudí’s exceptional creative contribution to the development of architecture and building technology in the late 19th and early 20th centuries.

The four buildings added to the List are: Casa Vicens (1883-85); Gaudí’s work on the Nativity façade and Crypt of the Sagrada Familia cathedral (1884-1926); Casa Batlló(1904-06); Crypt in Colonia Güell (1898-1905).