The Palace housed the office and residence of the Spanish Governor. It was destroyed in 1944 during the liberation of Guam, but portions of the foundation may still be seen.
Under the American administration, the Plaza was expanded to include a baseball field and badminton court. Today the Kiosko (bandstand) stands on what was once the baseball field. World War II brought more changes to the Plaza.
The Plaza de España today continues to be the site for numerous social and civic functions, including the inauguration of the Governor of Guam – emphasizing its significance in Guam's history.