(©Historic New Orleans Collection)
This trove of local historic treasures features free changing exhibitions. Open Tu-Sa, 9:30 am-4:30 pm; Su, 10:30 am-4:30 pm. The Louisiana History Galleries are housed in the Merieult House, circa 1792, while the Laura Simon Nelson Galleries of Louisiana Art are in the circa-1825 Perrilliat House (400 Chartres St.). Guided tours of the Williams Residence are $5 (Tu-Sa, 10 and 11 am, 2 and 3 pm; Su, 11 am, 2 and 3 pm); other tours available.