A covered reservoir in Bullaburra, NSW Australia on Great Western Highway (reference number WS0387). The facility is operated by Sydney Water and the grounds also service a pumping station.
<a href="//commons.wikimedia.org/wiki/User:Radiotrefoil" title="User:Radiotrefoil">Radiotrefoil</a>
<span class="int-own-work" lang="en">Own work</span>