This is a shot revealing you some of the biggest mall in downtown Toronto, that is how they advertise it. Check out their webpage: http://www.torontoeatoncentre.com/ and most likely this is a mall you are going to visit while in Toronto.
I must say I got a bit dizzy while walking around there, as I am not much of a shopper, but if you are, then please, shop away! Variety is mind-blowing.
The mall was named after the now-defunct department tore chain that once anchored it.
If more interest about the architecture and the mall, please check Wikipedia about Eaton Centre.