Gadget Man Ireland - World's Smallest Microscope - Pocket Money Range
The world's smallest sculptures - in pictures | Science | The Guardian
World's Smallest Snowman: Scientist Claims New Record - Scientific American
A Boy And His Atom: The World's Smallest Movie - YouTube
This is an electron microscope picture of the smallest thing I've ever 3D printed. The button is only 1/100th of a millimeter across. The text at the bottom has a linewidth of