Joseph Ignaz Huber

Joseph Ignaz Huber spent his life carving tiny woodblocks in a Munich attic, inking them so carefully you can still smell the linseed oil 250 years later. Every morning he walked past the same church spire on his way to the workshop, and you can see it hiding in the background of his 1782 print The Virgin Mary—look for the crooked steeple behind her left shoulder. Tap that print in the app and zoom in; the cracks in the wooden block itself show up like wrinkles on her robe.