M.C. Escher’s internationally known and fantastical prints are coming to Portland. Located at the nexus of art, mathematics, and science, his work playfully explores multidimensional realities, visual puzzles, and decorative patterning. The exhibition includes early figure drawings, lesser-known book illustrations, detailed Italian landscapes, transformations in which fish morph into birds, and the birds morph into horses, and his signature architectural fantasies in which stairways seem to go…