The Works of Antoni Gaudí was inscribed on the UNESCO World Heritage List

Seven properties built by the architect Antoni Gaudí (1852-1926) in or near Barcelona testify to Gaudí's exceptional creative contribution to the development of architecture and building technology in the late 19th and early 20th centuries. Parque Güell, Palacio Büell, Casa Mila, Casa Vicens, Gaudí's work on the Nativity façade and Crypt of the Sagrada Familia cathedral, Casa Batlló, and the Crypt in Colonia Güell represent an eclectic, as well as a very personal, style which was given free reign in the design of gardens, sculpture and all decorative arts, as well as architecture.

Gaudí's work exhibits an important interchange of values closely associated with the cultural and artistic currents of his time, as represented in el Modernisme of Catalonia. It anticipated and influenced many of the forms and techniques that were relevant to the development of modern construction in the 20th century.