Etchmiadzin Cathedral
... that the Etchmiadzin Cathedral is considered the oldest cathedral in the world?
... that the <b id="mwAn4"><a href="./Etchmiadzin_Cathedral" id="mwAn8" rel="mw:WikiLink" title="Etchmiadzin Cathedral">Etchmiadzin Cathedral</a></b> <i id="mwAoA">(pictured)</i> is considered the oldest cathedral in the world?