Anaglyphs are images that contain two different pictures. By wearing glasses that match the blue and red colors in the image, each eye only gets to see one of the images, creating the illusion of a 3D picture.
Go take a picture that you think would look better in 3D. Upload it and write why it would be better in 3D.
The Lord of the Rings: The Fellowship of the Ring, Peter Jackson, 2001