Blauhöhle
...that the Blauhöhle in Germany's Swabian Alb is a huge cave system with more than 50-meter (164-feet) high caverns that can be accessed by diving through the Blautopf ?
...that the <b id="mwBFg"><a href="./Blauhöhle" id="mwBFk" rel="mw:WikiLink" title="Blauhöhle">Blauhöhle</a></b> in <a href="./Germany" id="mwBFo" rel="mw:WikiLink" title="Germany">Germany</a>'s <a class="mw-redirect" href="./Swabian_Alb" id="mwBFs" rel="mw:WikiLink" title="Swabian Alb">Swabian Alb</a> is a huge <a href="./Cave" id="mwBFw" rel="mw:WikiLink" title="Cave">cave</a> system with more than 50-meter (164-feet) high <a class="mw-redirect" href="./Caverns" id="mwBF0" rel="mw:WikiLink" title="Caverns">caverns</a> that can be accessed by diving through the <a href="./Blautopf" id="mwBF4" rel="mw:WikiLink" title="Blautopf">Blautopf</a> <i id="mwBF8">(pictured)</i>?