<a href="https://en.wikipedia.org/wiki/Stalactite" class="extiw" title="en:Stalactite">Stalactites</a> worn down by erosion, showing their cross-section; cave ceiling of the <a href="https://en.wikipedia.org/wiki/Bear%27s_Cave_(Erpfingen)" class="extiw" title="en:Bear's Cave (Erpfingen)">Bear's Cave</a>, <a href="https://en.wikipedia.org/wiki/Sonnenb%C3%BChl" class="extiw" title="en:Sonnenbühl">Sonnenbühl</a>, <a href="https://en.wikipedia.org/wiki/Baden-W%C3%BCrttemberg" class="extiw" title="en:Baden-Württemberg">Baden-Württemberg</a>, <a href="https://en.wikipedia.org/wiki/Germany" class="extiw" title="en:Germany">Germany</a>.
<a href="//commons.wikimedia.org/wiki/User:Llez" title="User:Llez">Llez</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>