Check out this site for millions of maps from all over the world. You have to remember that if you want a Liverpool map it maybe under something like "er is a map of Liverpool" or "Ariel map of Liverpool".
Click on the map you want, a new window opens,
click on "Display Full Record", a new window opens,
scroll down till you see "Digital Object" with something like
that's the link you need. Click on that and enjoy.
Link for Mapshttp://vc.lib.harvard.edu/vc/deliver/bro...owseindex=Title