Roman bridge in the Wilanów Park, Warsaw, Poland. It is also located in the Morysin nature reserve (but outside the Morysin park).
<a href="//commons.wikimedia.org/wiki/User:Darekk2" title="User:Darekk2">Dariusz Kowalczyk</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>