3rd century AD Roman walls of the former Roman vicus <a href="//commons.wikimedia.org/wiki/Category:Centum_Prata" title="Category:Centum Prata">Centum Prata</a> at <a href="//commons.wikimedia.org/wiki/Category:Meienberg_(Rapperswil-Jona)" title="Category:Meienberg (Rapperswil-Jona)"><i>Meienbergstrasse</i></a> in <a href="https://en.wikipedia.org/wiki/Kempraten" class="extiw" title="en:Kempraten">Kempraten</a> respectively <a href="https://en.wikipedia.org/wiki/Rapperswil_SG" class="extiw" title="en:Rapperswil SG">Rapperswil</a> (Switzerland)
<a href="//commons.wikimedia.org/wiki/User:Roland_zh" title="User:Roland zh">Roland zh</a>
<span class="int-own-work" lang="en">Own work</span>