8 hours stop over in Dusseldorf

I have 8 hours stop over (from 6 to 14) in Dusseldorf. Please advise me how to (in easiest way) get to the city and what is "must see" there.

best regards

Take the S-Bahn (train) to downtown Dusseldorf and stroll around the city center.

Agree. Instructions: http://www.dus.com/dus_en/bahn/. Check out Aldstadt, try some of the local beer, which is, er, local to the region. Rather dark stuff.

So beer is the must-see in Dusseldorf?

Thank you, that's good to know.

Can I just look at it, or should I drink it, too?

What about this http://www.stay.com/dusseldorf/guides/279939-730b5635/top-10-highlights-in-dusseldorf/

Makes the beer look even better!