Eliza spring, one of the <a href="https://en.wikipedia.org/wiki/Barton_Springs" class="extiw" title="w:Barton Springs">Barton Springs</a>. The area around the spring is the Zilker Park Amphitheater, which is not used anymore. The structure was listed on the National Register of Historic Places on May 23, 1997 as part of the Zilker Park Historic District.
<a href="https://en.wikipedia.org/wiki/User:Nv8200pa" class="extiw" title="en:User:Nv8200pa">Larry D. Moore</a>
CC BY 4.0
<span class="int-own-work" lang="en">Own work</span>