Google is your friend.
http://www.istockphoto.com/stock-illustration-845170-sex-and-the-city-skyline.php
I'm sure there are many, many more. This was the first I found. If this doesn't work, go into the Google Image search, and type city skyline or similar, and select "clip art" or "line drawing" under the advanced tab.
There is a skyline template in the template gallery. I am not sure how to paste the link. Hope this will help, I noticed that this was posted some time ago.http://cakecentral.com/modules.php?name=gallery&file=displayimage&pid=1274030
Maybe this is how it's done.
Jeannie
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