Click on the image to see the detail in a zoomable context.
Detail from Portrait of Sigismund Baldinger, Georg Pencz, about 1545
Detail from Emperor Joseph II with Grand Duke Pietro Leopoldo of Tuscany, Pompeo Batoni, 1769
Map of Rome
Detail from Pieta at the Foot of the Cross, Ambrosius Benson
Detail from Madonna of the Goldfinch, Raphael, 1505-1506
Detail from Radha and Krishna in the boat of love, painter unknown
A reblog of sorts from nataliakoptseva.tumblr.com, with context added.
Detail from The Tower of Babel, Pieter Bruegel the Elder, 1563
Detail from Merode Altarpiece, Robert Campin
Saint Joseph, carpenter. The mousetrap symbolizes the trapping of Satan by his step-son.
Detail from Virgin and Child with the Infant Saint John, Joan de Burgunya
Detail from The Marsham Children, Thomas Gainsborough, 1787