<p>Harbour of Eleutherios located beneath the modern Yenikapi neighborhood of Istanbul. 
"In November 2005, workers on the Bosphorus Tunnel Project discovered the silted-up remains of the harbour. Excavations produced evidence of the 4th-century Port of Theodosius. There, archaeologists uncovered traces of the city wall of Constantine the Great, and the remains of over 35 Byzantine ships from the 7th to 10th centuries, ..."
<a href="https://en.wikipedia.org/wiki/Harbour_of_Eleutherios" class="extiw" title="en:Harbour of Eleutherios">en.wikipedia.org/wiki/Harbour_of_Eleutherios</a>
</p>
Istanbul Turkey
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/93452909@N00">brewbooks</a> from near Seattle, USA
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/brewbooks/14228346682/">Istanbul Turkey</a>