The Pantheon (27 BC.) - Piazza della Rotonda (<a href="https://en.wikipedia.org/wiki/Rome" class="extiw" title="w:Rome">Rome</a>).
<a href="//commons.wikimedia.org/wiki/User:Jean-Pol_GRANDMONT" title="User:Jean-Pol GRANDMONT">Jean-Pol GRANDMONT</a>
CC BY 4.0
<span class="int-own-work">Self-photographed</span>