1. An interactive video window display system, comprising: means for projecting a visual image; means for displaying the visual image, the means for displaying located behind a window having a front side, wherein the visual image is projected onto a back side of the means for displaying and is configured for viewing on a front side of the means for displaying, wherein an angle between the projected visual image and the means for displaying is oblique and the means for projecting is configured to adjust the visual image such that the visual image is substantially rectangular on the means for displaying; means for detecting interaction of an object on the front side of the window with the visual image, wherein the means for displaying is at least partially transparent to light detectable by the means for detecting and the means for detecting may detect the object through the means for displaying; and a computing device configured to cause the means for projecting to change the visual image in response to the interaction of the object with the visual image, wherein the means for projecting and means for detecting are located on a same side of the window.