1. A display apparatus, comprising: a first display structure having a 3-dimensional shape with an interior surface, said first display structure being configured to display a first image on said interior surface so as to be viewable from a position that is at least partially surrounded by said interior surface; a second display structure configured to display a second image on another surface that is viewable from said position that is at least partially surrounded by said interior surface; and a projector configured to project the second image from within an interior space that is defined by an inside of the second display structure toward the another surface, wherein said second image is of an object, and wherein the projector is configured to project said second image to the another surface for viewing from a predetermined viewpoint based on the predetermined viewpoint and a shape of the another surface on which the second image is displayed, and to generate the second image using images captured respectively by a plurality of imaging devices that capture respective images of the object.