Getting around in Dusseldorf is relatively simple using public transport. The bus, tramway and subway network are interconnected, and tickets are sold at stops or from vending machines. Instructions are usually only in German. It is often worth buying a Day Pass (Tagesticket), which is valid until 3am the following morning. Dusseldorf is fairly flat and compact, however, and many visitors choose to walk between attractions in the city centre. Those that can't be reached on foot are accessible by taxis, which are easily hailed on the street. Renting a car in Dusseldorf is also a good option but not really necessary unless travelling outside of the city centre.