Your professor has recommended the following sites if you want to have a little fun.
The library catalogue tells you what material is available at the University of Toronto Libraries.
You can search by keyword using the anywhere; and look for topics: "Greek Art", "hoplite", or "Persian Wars".
If you need a work by an author, do a author search. If you want information about the author, do a subject search.
Remember as UTM students you may request material to be delivered to UTM from most of the UTL system.
Below is a list of call numbers for various subjects that may be helpful to you while browsing the stacks in the UTM Library.
★ Level 3 call numbers are from A to K, Level 4 call numbers are from L to Z