Our corridors are now decorated by images selected from the still-growing collection of artworks of Marta and Martin. We agreed, the artworks are close to our souls. They are as beautiful as the micro-cosmos of cells that we study. The works originated from black and white images of ultrathin slices taken by digital camera and electron microscope. The slices cut from a millimetre-size cube of plasticised samples of a tissue were about 50 to 80 nm thin, that is, 10 000 times thinner than the finest prosciutto. The images were taken at magnification of 10 000 times or more, thus 1 micrometre in a cell could reach up to 100 millimetres in its image. The final artworks were created by transformation of a thousand shades of grey in the master image to the space of colours with no change in proportions only by the imagination of authors supported by modern computer graphics.