Duesseldorf is the capital city of the German state of North
Rhine-Westphalia. The city is situated near the river Rhine and
is inhabited by 580,000. Over 10 million people live in the
Rhine-Ruhr metropolitan area. Duesseldorf is well known for the
"Kö" (Königsallee), a popular shopping destination. Among the
sights of Duesseldorf are the ruins of Kaiserpfalz Kaiserswerth,
Duesseldorf castle and Johanneskirche.