The 16th-century Casa de los Azulejos is clad with 18th-century blue-and-white talavera tiles It was originally the residence of the Count del Valle de Orizaba. In 1919, Sanborns (a retail pharmacy chain) acquired its most famous branch location, the Casa de los Azulejos, a major Mexico City tourist attraction and national monument. This is probably the world's only pharmacy decorated with a mural by Jose Clemente Orozco. In 1925 he painted the privately commissioned mural Omniscience in the Casa de los Azulejos, when the building was the site of the World-Wide Worker movement. It has also served as the Jockey Club of Mexico.