In the RijksMuseum in Amsterdam I saw an exhibition of Dutch micro-carvings from the late Middle Ages.
Detailed Biblical scenes are produced on such unimagical small scale, you can hardly see them without a magnifier.
A dismantled Prayer Nut. They were all made at the workshop of Adam Dircks from 1500-1530
This three-demensional story is carved from a single piece of wood. It illustrates the life of George, the legendary warrior-saint who liberated the city of Silene from the clutches of the dragon.