I live in Burnaby. Metrotown is half a block away from my apartment. I can see it right now through my veranda.
What kind of shops are there? Hmmm... clothing? They got food courts, The Bay, Sears, Zellers, Toys "R" Us, etc.
It's also attached to Eaton Centre with Metropolis which is supposedly a different shopping mall.
For simplicity, "Metrotown" is a general term referring to that shopping area. The 3 main complexes would be the Metrotown mall, Eaton Centre, and Station Square.
OK.. now I'm jumping all over the place. Just go there damn it. It's just a shopping mall.