<p>Hippodrome of Constantinople, built in the 3rd century. 
Serpentine Column, cast to celebrate the victory of the Greeks over the Persians during the Persian Wars in the 5th century BC, moved from Delphi to Constantinople. The heads of snakes (3) are lost. 
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Now under renovation.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/37583176@N00">Ninara</a>
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<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/ninara/52121653364/">Sultanahmet Square, Istanbul</a>