Stronghold in Drslavice, part of <a href="https://en.wikipedia.org/wiki/Klatovy" class="extiw" title="en:Klatovy">Klatovy</a>, Czech Republic.
Pavel Hrdlička (Czech Wikipedia user <a href="//commons.wikimedia.org/wiki/User:Packa" title="User:Packa">Packa</a>)
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>