Central part of a large floor mosaic, from a Roman villa in <a href="//commons.wikimedia.org/wiki/Sentinum" title="Sentinum">Sentinum</a> (now known as <a href="//commons.wikimedia.org/wiki/Sassoferrato" title="Sassoferrato">Sassoferrato</a>, in <a href="//commons.wikimedia.org/wiki/Marche" title="Marche">Marche</a>, Italy), ca. 200–250 C.E.  Aion, the god of eternity, is standing inside a celestial sphere decorated with zodiac signs. Sitting in front of him is the mother-earth goddess, Tellus (the Roman counterpart of Gaia) with her four children, who possibly represent the four seasons.
<a href="//commons.wikimedia.org/wiki/User:Bibi_Saint-Pol" title="User:Bibi Saint-Pol">User:Bibi Saint-Pol</a>, own work, 2007-02-08