Detail and light reflex of Oculus at St. Luzia church in Nettersheim-Engelgau, Kreis Euskirchen, Eifel, Germany
<a href="//commons.wikimedia.org/wiki/User:Elya" title="User:Elya">Elke Wetzig</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>