Staircase leading to the catacombs of Jajce. The poster is a reproduction of an illumination from the Missal of Hrvoje, representing Hrvoje Vukčić Hrvatinić.
<a href="//commons.wikimedia.org/w/index.php?title=User:To%C3%AFlev&amp;action=edit&amp;redlink=1" class="new" title="User:Toïlev (page does not exist)">Toïlev</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>