The Largest Mirror In The World, Salt Field, Bolivia

• Many self-portraits are made possible through the use of mirrors:
- Without a mirror, the great self-portraits by Dürer, Frida Kahlo, Rembrandt, and Van Gogh could not have been painted.
- M. C. Escher used special shapes of mirrors in order to achieve a much more complete view of his surroundings than by direct observation in Hand with Reflecting Sphere (also known as Self-Portrait in Spherical Mirror).