 There are two main entrances to the building , one facing Constitution Avenue , and another facing 23rd Street NW . The building is made of acid @-@ etched precast @-@ concrete and resembles limestone . The design is centered around two atria , a large one facing the National Mall that is designed for the public , and a smaller private one for staff that overlooks the Potomac River . The larger atrium , the George P. Shultz Great Hall , measures 11 @,@ 800 sq ft ( 1 @,@ 100 m2 ) and features the 80 ft ( 24 m ) high glass curtain wall facing the National Mall . The 230 @-@ seat Frank C. Carlucci III Auditorium , Jacqueline and Marc Leland Atrium , and 20 @,@ 000 sq ft ( 1 @,@ 900 m2 ) Global Peacebuilding Center , an interactive museum dedicated to peacemaking , are accessible via this atrium . The roof over the Great Hall , designed to convey a dove 's wings , is called Ansary Peace Dove . The second atrium , also known as the International Women ’ s Commons , measures 3 @,@ 600 sq ft ( 330 m2 ) and is lined with offices , a library , meeting rooms , conference center , and the Farooq Kathwari Amphitheatre . The roof over this atrium is a simplified version of Ansary Peace Dove . There is a 2 @,@ 000 sq ft ( 190 m2 ) outdoor terrace and adjoining boardroom facing the Lincoln Memorial . A three @-@ story underground parking garage can accommodate 230 vehicles ; 140 of those spaces are reserved for Navy personnel . 
