A German free city on the Trave, an old-fashioned place, but with wide, open streets, 12 m. from the Baltic, 40 m. NE. of Hamburg; joined the North German Federation in 1866, and the Customs Union in 1868. It has a 12th-century cathedral, some fine old churches, scientific and art collections; with unimportant industries; its Baltic and German transit trade is extensive.