Albrecht Durer

This engraving by Albrecht Durer is so fantastic. I love the amount of detail involved. What's interesting are the little details involved like the date "1514" engraved on the magic square. Also the fact that the title Melancolia I has nothing to do with a series of engravings, but with first of the three types of melancholia defined by the German humanist writer Cornelius Agrippa.