Cistern of Aspar
... that according to a tradition a passage under Constantinople linked the Byzantine Cistern of Aspar with the Hagia Sophia?
... that according to a tradition a passage under <a href="./Constantinople" id="mwAeg" rel="mw:WikiLink" title="Constantinople">Constantinople</a> linked the <a href="./Byzantine_Empire" id="mwAek" rel="mw:WikiLink" title="Byzantine Empire">Byzantine</a> <b id="mwAeo"><a href="./Cistern_of_Aspar" id="mwAes" rel="mw:WikiLink" title="Cistern of Aspar">Cistern of Aspar</a></b> with the <a href="./Hagia_Sophia" id="mwAew" rel="mw:WikiLink" title="Hagia Sophia">Hagia Sophia</a>?