This is a lovely little story I spotted doing the rounds on Twitter earlier: scientists at The Nelson-Atkins Museum of Art have discovered a tiny grasshopper embedded in the paint of a prized Van Gogh piece titled Olive Trees

The discovery of this tiny interloper on (in?) such a well-known artwork is really special: for me it brings to life Van Gogh's process in creating the work. The tangible nature of the insect conjures images of the artist outside, no doubt having to stop every so often to pick unwanted insects, dirt, or plant life from the canvas, deposited there by the wind. 

It's little gems like this, narrative treasures which the visitor would be otherwise unaware of (the grasshopper is almost invisible to the naked eye), which allow well-crafted audio and multimedia guides to shine. That's what I love getting to share with people through the work I produce.