This historic hotel with an eclectic architectural style, reflecting Art Deco, Arabic references, features of Hispano-Moorish architecture, and both neo-classical and neo-colonial elements. art deco details dates from 1930.October 1962 was the month of the Missile Crisis. Antiaircraft emplacements were installed on the hotel's hillock, and walled trenches were excavated below the gardens - a large scale engineering feat.In 1982, Havana's old town (La Habana Vieja) and the city's system of fortifications were listed as a UNESCO World Heritage Site; the fortifications concerned include the cannons in the hotel gardens, which formed part of the historic Santa Clara battery.In 1998, the hotel was declared a national monument by the National Monuments Commission, based on its architectural values, place in Cuba's history, the celebrities who have been its guests and the international events