Aqaba Church
... that the Guinness World Records lists the Aqaba Church in Jordan as "oldest known purpose-built Christian church in the world"?
... that the <a href="./Guinness_World_Records" id="mwA50" rel="mw:WikiLink" title="Guinness World Records">Guinness World Records</a> lists the <b id="mwA54"><a href="./Aqaba_Church" id="mwA58" rel="mw:WikiLink" title="Aqaba Church">Aqaba Church</a></b> in <a href="./Jordan" id="mwA6A" rel="mw:WikiLink" title="Jordan">Jordan</a> as "oldest known purpose-built Christian church in the world"?