"Section 1.    Fort Santiago is hereby declared a national shrine to be known as the "Shrine of Freedom" in memory of national heroes and martyrs who had been confined and lost their lives within said premises.

"It shall be constructed as closely as possible along the lines of the original structure, and its surrounding shall be reserved for a national Plaza of the Unknown Hero which shall include the site occupied by the former Palace of the Spanish Governor-General, and excluding the former site of the Ayuntamiento which shall be sold to the Central Bank of the Philippines to be used in the construction of a new and modern building, subject to conditions to be approved by the President of the Philippines."