Several buildings were built as part of the Arsenal but have not been used as residential structures, instead being utilized for office or storage space. These include buildings 104 and 107, originally used as storehouses; 105, a two-winged structure used as an armory and office; and 110, used as a quartermaster's depot and storehouse. Building 110 is now home to the Lower Manhattan Cultural Council's Arts Center at Governors Island, which opened in September 2019. All were built in brick from the 1850s through 1870s. Buildings 106 (pump house) and 108 and 109 (offices) were built during the 1940s in the same style as the other structures, though building 109 replaced a wooden structure built in 1918. Pershing Hall (building 125), a three-story brick building north of buildings 107 and 108 on the northern waterfront, served as the headquarters for the First Army when built in 1934.