of these are the modeling rooms and rooms devoted to the use of students and professors. On the second floor is the main hall, which extends across the building, and is intended for the exhibition of large works of art. This story is divided into galleries, which are lighted from the top. Through the center runs a hall which is set apart for the exhibition of statuary, busts, small statues, bas-reliefs, etc. On each side of this hall are picture galleries, which are so arranged in size and form as to admit of classification of pictures, and which can be divided into suits where separate exhibitions may be held at the same time. The art collections of the gallery are considered the most valuable in America. They comprise the masterpieces of Stuart, Sully, Allston, West, and others of our early artists, the Gilpin gallery, fine marbles, and facsimiles of famous statues, as well as a magnificent gallery from the antique. The academy building is Furness's best known work, and served to establish him as one of the country's top architects. Despite being initially praised by critics, by the turn of the century, tastes had changed and the building was not considered appealing. Eventually, steps were taken to obscure its ornamentation to "modernize" it. In the post-World War II era, the building was newly appreciated again, with the growth in the historic preservation movement making people more aware of treasures from the past. The building is now considered a masterpiece, one of the greatest buildings in Philadelphia and arguably Furness's greatest work. The building was listed on the National Register of Historic Places in 1971 and designated a National Historic Landmark in 1975. In 1976 the building was fully restored, both its interiors and exteriors, to coincide with its centennial and with the United States bicentennial. The restoration work was conducted through Day and Zimmerman Associates, and headed by Human Myers. In 2019, architectural firm DLR Group completed another renovation on both the Furness-Hewitt and Hamilton buildings to accommodate growth within the institution's fixed site while maintaining the buildings' historic details. Samuel M.V. Hamilton Building In 2002, Dorrance H. Hamilton made a large donation to the academy for its expansion. It purchased the former automobile factory at 128 N. Broad Street, next to the original building. Designed by Charles Oelschlager, the building had formerly been used as a federal building. The