The many canals in Hamburg are crossed by over 2500 bridges, more than Amsterdam and Venice combined. Hamburg has more bridges inside its city limits than any other city or town on Earth. The Köhlbrandbrücke, Freihafen Elbbrücken, and Lombardsbrücke and Kennedybrücke dividing Binnenalster from Aussenalster are important traffic buildings.
The townhall is a richly decorated Neo-Renaissance building finished in 1896. With its tower of 112 metres (370 ft) it is Europe's highest townhall. On its facade it shows the emperors of the Holy Roman Empire since Hamburg was, as a Free Imperial City, only under the sovereignty of the emperor. The brick stone office building Chilehaus from 1922 spectacularly is shaped like an ocean liner, designed by architect Fritz Höger.
Hambug zoo
To be completed around 2015 Europe's largest inner city development as of 2008, the quarter HafenCity, will house about 10,000 inhabitants and 15,000 workers. Its ambitious planning and architecture (amongst others designs by Rem Kolhaas and Renzo Piano will be realized) are slowly coming into shape. By the end of 2010 the Elbe Philharmonic Hall (Elbphilharmonie) is scheduled to house its first concerts in a spectacular building designed by the Swiss firm Herzog & de Meuron on top of an old warehouse.
The many parks of Hamburg are distributed over the whole city, which makes Hamburg a very green city. The biggest parks are the Stadtpark, the Ohlsdorf Cemetery and Planten un Blomen. The Stadtpark, Hamburg's "Central Park", has a great lawn and a huge watertower which houses one of Europe's biggest Planetariums. The park and its buildings were also designed by Fritz Schumacher in the 1910s