These Sand Castles are Made From One Grain of Sand

It's easy to make a sand castle with sand but not many people can make carved sand castles on a single grain. Artist Vik Muniz and Researcher Marcelo Coelho managed to etch a castle on a granule of sand. The process took four years.

The tiny drawings are half a millimeter in length and are not visible to the human eye. Muniz created sketches of the castles using a camera lucida, an optical superimposition device to turn the image into a projection on a piece of paper. This allowed him to easily trace the minuscule castles. Coelho used a focused ion beam to make the castles on a microscopic scale.

These tiny castles are making a big statement on display at the Tel Aviv Museum of Art.