A 3D hologram is a three-dimensional image or visual representation of an object or scene created using light interference patterns. Unlike traditional 2D displays that show flat images, a 3D hologram gives the illusion of depth and allows viewers to perceive objects from different angles, just as if they were looking at the actual physical object itself. The technology behind 3D holography combines principles of optics, light, and laser technologies to produce stunning, lifelike images that seem to float in space.