On <b><a href="https://en.wikipedia.org/wiki/G%C3%A4nseh%C3%A4ufel" class="extiw" title="en:Gänsehäufel">Gänsehäufel</a></b> island in <a href="https://en.wikipedia.org/wiki/Vienna" class="extiw" title="en:Vienna">Vienna</a>
Manfred Werner / <a href="//commons.wikimedia.org/wiki/User:Tsui" title="User:Tsui">Tsui</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>