 The Tower Building of the Little Rock Arsenal , also known as U.S. Arsenal Building , is a building located in MacArthur Park in downtown Little Rock , Arkansas . Built in 1840 , it was part of Little Rock 's first military installation . Since its decommissioning , The Tower Building has housed two museums . It was home to the Arkansas Museum of Natural History and Antiquities from 1942 to 1997 and the MacArthur Museum of Arkansas Military History since 2001 . It has also been the headquarters of the Little Rock Æsthetic Club since 1894 . 
 The Tower Building of the Little Rock Arsenal , also known as U.S. Arsenal Building , is a building located in MacArthur Park in downtown Little Rock , Arkansas . Built in 1840 , it was part of Little Rock <a href='null_genetive' title='1'><mark>'s</mark></a>first military installation . Since its decommissioning , The Tower Building <a href='been_done' title='2'><mark>has</mark></a> housed two museums . It was home to the Arkansas Museum of Natural History and Antiquities from 1942 to 1997 and the MacArthur Museum of Arkansas Military History since 2001 . It <a href='uninflect' title='3'><mark>has</mark></a> also been the headquarters of the Little Rock Æsthetic Club since 1894 . 
Da Tower Building of the Little Rock Arsenal , also known as U.S. Arsenal Building , is a building located in MacArthur Park in downtown Little Rock , Arkansas . Built in 1840 , it was part of Little Rock  first military installation . Since its decommissioning , The Tower Building done housed two museums . It was home to tdaArkansas Museum of Natural History and Antiquities from 1942 to 1997 and the MacArthur Museum of Arkansas Military History since 2001 . It have also been the headquarters of thdail Rock Æsthetic Club since 1894 .