Different camera lenses of different sizes taking the same picture at the same distance, but with drastically different senses of scale produced by the different sizes of the lenses.
This is probably the best picture I can think of to properly demonstrate how the feeling of being tiny ought to be. Not merely as if your POV were low to the ground, but rather the sensation of the entire world being stretched out in all dimensions. You can really feel that difference in your stomach with this picture.
