From a Post by Greg Sterling on Search Engine Land:
Microsoft announced today, that in conjunction with Nokia, Bing has added “more than 2,700 venue maps” in North America, Europe and Asia. You can access them online at Bing.com/maps (“explore venue maps”).
In the US and UK markets venue (indoor) maps are also available on Windows Phones and through the Bing app for the iPhone.
Read the Complete Article
A Portion of Venue Map for San Francisco International Airport
See Also: Bing Venue Maps Goes International Adding Thousands of Shopping Malls (via Bing Maps Blog)
Note: Bing Began Providing Access to Indoor Venue Maps in December, 2010.