Within the walls of the Kyiv Pechersk Lavra, the Kiev Monastary of the Caves is the Museum of Microminiatures, a collection of models that are so small and so detailed that they defy belief. For example, there is the rose inside a hair, shown above:
“The hair is drilled lengthwise and polished outside and inside until being transparent. An artificial rose twig is inserted into the bore. The flower diameter is 0.05 millimeters, the stem is 0.005 millimeters thick.”