I just read in MacUser, that Google Maps added another cool feature: Street View.
Basically, you enter an intersection or an address as you normally would, and then click “Street View,” and you get a pop-up that shows you a photograph of that intersection, complete with a cardinal axis superimposed over it.
For now, this only works in New York City, San Francisco, Las Vegas, Miami, and Denver. It is really very cool. Here’s a link to a street view of the 5th Avenue Apple Store in NYC.