"Kronhuset" (which translates to "the crown house", a house belonging to the state) is an old house in Göteborg, built around 1650 as a weapon storage.
<a href="//commons.wikimedia.org/wiki/User:Rolf_B" title="User:Rolf B">Rolf Broberg</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>