"Roman Baths" built for Friedrich Wilhelm IV between 1829 &amp; 1840 in Sanssouci park (Potsdam, Germany).
<a href="//commons.wikimedia.org/wiki/User:Lestath" title="User:Lestath">Lestat</a> (Jan Mehlich)
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>