Zerzevan Castle
... that an underground temple of Mithraism was discovered inside Zerzevan Castle during archaeological excavations?
... that an underground temple of <a href="./Mithraism" id="mwA4Y" rel="mw:WikiLink" title="Mithraism">Mithraism</a> was discovered inside <b id="mwA4c"><a href="./Zerzevan_Castle" id="mwA4g" rel="mw:WikiLink" title="Zerzevan Castle">Zerzevan Castle</a></b> during archaeological excavations?