Frieze of the Erechtheum, Acropolis of Athens, Greece.
<table class="toccolours" style="width:100%; margin-top:10px;" cellpadding="2"><tbody><tr class="plainlinks"><td>This photo was taken by <a href="//commons.wikimedia.org/wiki/User:Eusebius" title="User:Eusebius">Eusebius</a> (Guillaume Piolle).<br>Feel free to reuse it, but always credit me as the author as specified below.
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CC BY 3.0
<span class="int-own-work" lang="en">Own work</span>