 It remains one of the few surviving structures specific to Spanish immigration to the United States during the late 19th and early 20th centuries, a legacy which garnered the Centro Español building recognition as a U.S. National Historic Landmark (NHL) on June 3, 1988.El Centro Español de Tampa is one of two individual structures within Hillsborough County to be so designated.The historic and cultural significance of El Centro Español de Tampa was noted well before the announcement of its NHL status.