The Berlin Central and Regional Library is a fusion of the American House Library and the Berlin State Library which took place in 1995. The new Bundestag Library supports governmental officials. For business reference, the Science and Technology Center Berlin Adlershof (WISTA) contains a wealth of products and services in information technology in an integrated technology park just southeast of Berlin. For tourists, the New National Gallery contains works by Hals, Rembrandt, and Vermeer, as well as twentieth-century German art, especially Berlin portraits and cityscapes by Geroge Grosz and Otto Dix. The Pergamonmuseum contains classical artifacts and antiquities, such as Islamic art, a Pergamon Altar (160 B. C. ), and a Babylonian Throne Room, located on Museum Island in the middle of the river Spree with the Bodemuseum. Finally, the Bauhaus Archive Design Museum holds works from the Bauhaus period, which lasted from 1919 to 1933. A three-day pass to these museums and more can be purchased from the German tourism board.