Halifax's tourism industry showcases Nova Scotia's culture, scenery and coastline. There are several museums and art galleries in downtown Halifax. The Canadian Museum of Immigration at Pier 21, an immigrant entry point prominent throughout the 1930s, 1940s, and 1950s, was opened to the public as a National Historic Site of Canada in 1999 and is the only national museum in the Atlantic provinces. The Maritime Museum of the Atlantic is a maritime museum containing extensive galleries including a large exhibit on the famous , over 70 small craft and a steamship . In summertime the preserved World War II corvette operates as a museum ship and Canada's naval memorial. The Art Gallery of Nova Scotia is housed in a 150-year-old building containing nearly 19,000 works of art. The Black Cultural Centre for Nova Scotia in Dartmouth reflects the region's rich ethnic heritage.