The exterior apse of Saint Clement's Church, Philadelphia viewed from 20th Street.
<a href="https://en.wikipedia.org/wiki/user:Dgf32" class="extiw" title="en:user:Dgf32">user:Dgf32</a>
CC BY 3.0
<span class="int-own-work" lang="en">Own work</span> (<span lang="en" dir="ltr">Original text: <i><bdi lang="">self-made</bdi></i></span>)