Notice in this 3D Virtual Tour how you can look out the windows as you walk through the home. The ability to stand in the living room, or any room, and turn all the way around 360 degrees with incredible reality, is a huge selling point for the buyer who is looking for precisely this kind of home.
You can enlarge the tour to a full screen view, and at the bottom left and right are more options allowing you to move from one floor to the other, to view a 2D floor plan or a 3D floor plan. You can even turn and rotate those views. Buyers have never had so much control and such an ability to get a true feel for a home online.