Today at the commemoration of the 69th anniversary of the attack, the new Pearl Harbor Visitor’s Center will be dedicated. The overhaul of the center adds 6 acres of land, doubles the exhibition space in the museum, and improves the structural soundness of the building. The Visitor’s Center serves as the central entrance for four Pearl Harbor sites: USS Arizona Memorial, USS Bowfin Submarine Museum, USS Missouri Memorial, and Pacific Aviation Museum.