Microsoft today announced that it has now over 2700 venue maps on Bing Maps platform. Venue Maps are nothing but detailed maps of places like airports, malls, parks, etc,. For example, you can locate the shops at a Mall using Venue maps. Venue Maps locations are from over 30 countries across the world and they are going to update it constantly. You can even browse through the whole list of venue maps at www.bing.com/maps/venues.
You can try Bing Maps yourself here.