The Citadel of Aleppo is a large medieval fort in the old city of Aleppo, one of the oldest and largest castles in the world, dates back to the middle of the 3rd millennium BC. Aleppo, Syria.
<a href="//commons.wikimedia.org/wiki/User:Argenberg" title="User:Argenberg">Vyacheslav Argenberg</a>
CC BY 4.0
<span class="int-own-work" lang="en">Own work</span>