In my opinion, his 1956 lithograph “Print Gallery” is his greatest masterpiece, combining an infinitely repeating image with a precise mathematical warping of space to create a truly mind-bending piece of surreal art.
In the bottom-left corner, a man is standing in an art gallery, looking at a painting of the Maltese city of Senglea. Following the picture clockwise to the top-right corner, the painting expands, revealing an increasing amount of detail in the city’s buildings. Continuing round to the bottom-right corner, we see that one of the buildings is an art gallery. Returning to the bottom-left corner, we discover that this is the original art gallery in which the man is standing!