<p>Hippodrome of Constantinople, built in th 3rd century. 
</p>
Obelisk of Theodosius, from Luxor.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/37583176@N00">Ninara</a>
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/ninara/52121369586/">Sultanahmet Square, Istanbul</a>