Hamburg is the second largest city in Germany and with Hamburg Harbour, its principal port. A large part of the port is a fenced-in duty-free area. The city of Hamburg lies at the junction of the river Elbe with the rivers Alster and Bille and the city centre is beautifully set around two lakes, the Binnenalster ("Inner Alster") and the Aussenalster ("Outer Alster").
Hamburg is best visited in spring or summer. A typical Hamburg visit includes a tour of the city hall and the grand church St. Michaelis, and visiting the old warehouse district (Speicherstadt) and the harbour promenade (Landungsbracken). Sightseeing buses connect these points of interest. Of course, a visit in one of the world's largest harbours would be incomplete without having taken one of the harbour and/or canal boat tours (Groaye Hafenrundfahrt, Fleetfahrt) which start from the Landungsbracken. Many visitors take a walk in the evening around the area of Reeperbahn, considered Europe's second largest red light district and home of many theatres, bars and night clubs.
Hamburg has a history of heavy industry, but today is most notable for its aerospace and media interests.