Accademia di Belle arti in Florence, Italy. <a href="//commons.wikimedia.org/wiki/Lunetta" class="mw-redirect" title="Lunetta">Lunetta</a> by <a href="//commons.wikimedia.org/wiki/Andrea_della_Robbia" title="Andrea della Robbia">Andrea della Robbia</a>.
<a href="//commons.wikimedia.org/wiki/User:Sailko" title="User:Sailko">Sailko</a>
CC BY 2.5
<span class="int-own-work" lang="en">Own work</span>